A children's cancer research fund has been set up to collect donations for the
treatment and research of the disease. A random sample of 600 people shows
that 47% of the 300 who were contacted by telephone actually made
contributions, compared with only 34% of the 300 who received email
requests. Which of the formulas calculates the 98% confidence interval for the
difference in the proportions of people who make donations when contacted
by telephone versus those contacted by email?

Answers

Answer 1

Answer:

0.47-0.34 ± 2.33 *√[((0.47(0.53)/300) + ((0.34(0.66)/300)]

Explanation:

Given that:

By telephone :

Sample size 1, n1 = 300

Sample size 2, n2 = 300

proportion, p1 = 47% = 0.47 ; 1 - p1 = 1 - 0.47 = 0.53

Proportion, p2 = 34% = 0.34 ; 1 - p2 = 1 - 0.34 = 0.66

Confidence interval, Zcrit at 98% = 2.33

p1 - p2 ± Zcrit*√[((p1(1-p1)/n1) + ((p2(1-p2)/n2)]

0.47-0.34 ± 2.33 *√[((0.47(0.53)/300) + ((0.34(0.66)/300)]


Related Questions

Which of the following were the broader economic effects of the Taiping Rebellion on the global economy?

The Taiping Rebellion allowed the Qing dynasty to regain economic control of British seaports.
The Taiping Rebellion allowed the Taiping rebels to overthrow British trade companies in the region.
The Taiping Rebellion gave European nations the opportunity to further take advantage of a destabilized empire.
The Taiping Rebellion gave Japanese and Russian troops the opportunity to occupy Qing seaports along the Pacific Ocean.

Answers

Answer: the taiping rebellion gave European nations the opportunity to further take advantage of a destabilized empire

Explanation:

Answer:

C for us lazy folk

Explanation:

c is what the other guys answer corresponds too.

PLEASE HELP 30 POINTS
Suppose a student takes a multiple-choice exam containing 100 questions. The first 60 questions have 5 choices each and the second 40 have 4 choices each. Assume the student selects his or her answer to each question randomly. What is the standard deviation of the total number of questions answered correctly by this method? Round to the nearest tenth.

Answers

Answer:

I think it is 22

Explanation:

How did nationalism, colonialism, and imperialism and the Cold War influence the contemporary map of the 20tg century.

Answers

The correct answer to this open question is the following.

Although there are no options attached, we can say the following.

Nationalism, colonialism, and imperialism, and the Cold War influenced the contemporary map of the 20th century in that those elements created separation and division between countries. Wealthier nations used their expansionists ideas to invaded other nations, ethnicities created major separations and international conflicts, the greed of powerful nations exploited underdeveloped nations, polarized people, and confronted one political side against the other.

Nationalistic ideas radicalized ideas of "my country is better than yours and that gives the right to impose my conditions..." and this absurd idea was the foundation of more separation and exploitation of poor nations.

What is 10x30 thanks need help kinda being sped today lol

Answers

300. also, thanks for the  points

Answer:300

Explanation:10 x 30 =300

Click this link to view the OOH educational information for Geographers. According to the OOH, what are some educational, training, certification, or licensing options required or helpful for Geographers? Check all that apply.

geographic information systems professional (GISP) certification
master's degree
an associate degree
a commercial driver's license
a political-science certification
courses in mathematics​

Answers

Answer:

1. geographic information systems professional (GISP) certification

2. master’s degree

6.courses in mathematics

Explanation:

According to the OOH, some educational, training, certification, or licensing options required or helpful for Geographers are geographic information systems professional (GISP) certification,  master’s degree and courses in mathematics.

Who are geographers?

Geographers are the researchers who study about the Earth and the distribution of its land, features, and inhabitants. They likewise look at political or social designs and study the physical and human geographic qualities of districts going in scale from neighborhood to worldwide.

OOH represents Occupational Outlook Handbook, mainly for geographers. Geographers need at least a master's degree for most positions. If they have bachelor's degree then they need to have certifications.

According to the OOH, some educational, training, certification, or licensing options required or helpful for Geographers are geographic information systems professional (GISP) certification,  master’s degree and courses in mathematics.

Learn more about geographers.

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Which of the following is evidence of secure attachment in children?

Calm during separation
Desire for nourishment
Stranger anxiety
Maintaining distance when caregiver is present
Distress during separation

Answers

Answer:

Distress during separation

Explanation:

Distress during separation is one of the typical evidence of attachment in children. This is noticeable when a nurse that want to administer a drug in a child try to separate him or her from the mother but the child refused to be separated. Most times, the child will  end up crying when a forced separation happens.

The evidence of secure attachment in children is Distress during separation.

Attachment in children is can be regarded as the biological instinct that children do experience whereby they attach to attachment figure when they perceives threat or discomfort.

Therefore, one of the evidence is Distress during separation from the attachment figure.

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Review Questions
1 What are the risks of obesity?
2 What tendencies encourage fat accumulation?
3 Describe a desired state for a healthy lifestyle.
4 Líst the steps that you can take to achieve a lean body fat content.

JROTC
PLZ HELP ASAP
MY GRADE DEPENDS ON THIS

Answers

Answer: Maintaining a good health is necessary for maintaining the fitness of the body for performing daily physical activities.

Explanation:

1. The obesity is caused by the excess accumulation of fat in the body which lead to weight gain and the person is expected to get overweight. The people suffering from obesity are expected to accumulate cholesterol and fats in their blood vessels leads to arteriosclerosis and hypertension.

2. The low body physical activity, intake of heavy diet rich in fats and oil contribute to the accumulation of fat.

3. The desired state for the healthy life is daily exercise, appropriate sleep, reduction of sedentary life and healthy eating habits including fibers in the food which prevent constipation.

4. To obtain a lean body fat content one should increase the cardio exercise, must take adequate protein, reduce fats and oils in the diet, must eat high fiber diet, try to perform daily physical activities and lift weights.

A child in the concrete operations stage can reason differently than can a child in the sensorimotor stage. For example, if shown two identical balls of clay, one of which has been rolled into a rope, an older child (one in the concrete operational period) might decide that the ball and the rope both have the same amount of clay. What kinds of reasoning do you think the older child might use to draw that conclusion?

Answers

Answer:

The child would be using the reasoning that allows him to understand reversibility operation and reciprocity operation.

Explanation:

Through the reversibility operation the child can understand that some things after being changed can return to their original state. In the case shown in the question above, the child was able that once the clay ball was rolled on top of the rope, he could redo his clay concentration and reaching the same amount of clay as the rope. We can also state that the child understands the concept of reciprocity operation, since she understands that the changes that the ball undergoes are a consequence of the amount of clay that the ball has.

What was the primary economic interest of the united states in the missouri river territory to the trade in animals furs. The abundance of lumber resources. The potential expansion of the slave trade

Answers

Answer:

Territory to the trade in animals furs.

Explanation:

The region adjacent to the Missouri River was acquired by the United States on the occasion of the Louisiana Purchase from France in 1803, and was explored and documented during the Lewis and Clark Expedition, which ended in 1806.

During these explorations, it was discovered that it was a region with an abundant presence of indigenous fauna, which boosted the already incipient fur trade in the United States. In addition, the enormity of the territory facilitated the establishment of new trade centers in which to offer these furs.

This is due in 2 hours please help

Answers

What am I supposed to read???????

URGENT EXTRA POINTS

(c) The demographic data for country X for the year 2020 is provided in the table below.


Crude birth rate 381,000individuals

Crude death rate 241,000individuals

Net migration rate 21,000individuals

(i) Calculate the national population growth rate for country X. Show your work.


(ii) Using the rule of 70, calculate the doubling time for this population.

Answers

Answer:

1.6% growth rate

43.75 years = doubling time.

Explanation:

40-24 = 1616/1000 = 0.016 x 100 = 1.6% growth rate

70/1.6 = 43.75 years = doubling time.

Population growth rate is the rate at which the population of a country increases.

The population growth rate is 1.6%The population of country X will double after 44 years

Given

[tex]B = \frac{38}{1000}[/tex] --- birth rate

[tex]D = \frac{24}{1000}[/tex] --- death rate

[tex]N =\frac{2}{1000}[/tex] -- net-in migration rate

(a) The population growth rate

The population growth rate is:

[tex]r = B - D + N[/tex]

So, we have:

[tex]r = \frac{38}{1000} - \frac{24}{1000} + \frac{2}{1000}[/tex]

Take LCM

[tex]r = \frac{38 -24 + 2}{1000}[/tex]

[tex]r = \frac{16}{1000}[/tex]

[tex]r = 0.016[/tex]

Express as percentage

[tex]r = 0.016 \times 100\%[/tex]

[tex]r = 1.6 \%[/tex]

Hence, the population growth rate is 1.6%

(b) Number of years to double

Using the rule of 70, the number of years (n) to double is:

[tex]n = \frac{70}{r}[/tex]

So, we have:

[tex]n = \frac{70}{1.6}[/tex]

[tex]n = 43.75[/tex]

[tex]n = 44[/tex] -- approximated

Hence, it will take 44 years for the population to double

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A psychological researcher designs a study to determine whether positive feedback affects student test performance. The researcher requires each student enrolled in AP Psychology to participate. Students are divided into 3 groups—positive feedback, negative feedback, and no feedback. After completing the Module 1 FRQ, students in Group 1 are provided with positive feedback about their work and encouraged to keep working hard. Students in Group 2 are given criticisms of their writing and encouraged to rethink taking the course. Students in Group 3 are only given a numeric score, no written feedback. After reading the feedback, participants complete a survey measuring self-esteem and take their Module 1 Exam. Test scores are compared for the three groups. Following the test, all participants are debriefed and the true nature of the research explained. Results of the study indicate that participants who received positive feedback on their FRQs scored on average of 8 points higher than students who received negative feedback or no feedback at all. Which of the following violations to ethical guidelines is committed in the study described?
A) Confidentiality
B) Exposure to harmful procedures
C) Failure to debrief
D) Inappropriate use of deception
E) Voluntary participation

Answers

Answer: Option D

Explanation:

The test groups were divided into three groups the positive, negative and no feedback groups. The positive groups got better scores than compared to the negative feedback group and no feedback group.

The ethical guidelines that is violated is the inappropriate use of deception. The group that got negative feedback. Intentionally their morale was downsided.

Deception is not ethical in case of psychological experiments however, in some cases it is allowed to keep the experiment unbiased.

Answer:

B) Exposure to harmful procedures

Explanation:

You are mentally hurting the children's self esteem, hence unethical. Not A or C or D because you gave them a proper debriefing and confidentiality is fine. Not E because not all AP Psych students were forced; rather, they were given the option to participate. B is correct.

The gas tank in Rebecca car has a capacity of 60 liters. She adds 23 liters 825 milliliters of gas to the tank which already has 2,050 milliliters of gas . How more gas can Rebecca add to the gas tank.

Answers

Question:

The gas tank in Rebecca car has a capacity of 60 liters. She adds 23 liters 825 milliliters of gas to the tank which already has 2,050 milliliters of gas . How more gas can Rebecca add to the gas tank.

Solution:Step 1: Convert milliliters to liters.

[tex] \frac{825}{1000} = 0.825 \: l[/tex]

[tex] \frac{2050}{1000} = 2.05 \: l[/tex]

Step 2: Solve.

[tex]60 - (23 + 0.825 + 2.05)[/tex]

[tex] = 60 - 25.875[/tex]

[tex] = 34.125[/tex]

Answer:

Rebecca can add 34.125 L more gas to the gas tank.

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#AnswerForTrees

#BrainlyBookSmart

Answer:

Rebecca can add 34.125 L more gas to the gas tank.

Explanation:

First to answer gets Brainliest uwu

Answers

Answer:

thx

Explanation:

hzjofjcjekdkjfuejxj

Answer:

*sigh* 42 minutes late.

Explanation:

Augustus draws tickets one at a time for a raffle. The person named on the ticket must be present to win,
but 30% of the 750 raffle tickets have the names of people who are no longer present. Let T be the number of tickets Augustus needs to draw to find a winner who is present.
Find the probability that Augustus first draws the name of someone present on the 3rd ticket.
You may round your answer to the nearest hundredth
P(T = 3)

Answers

Answer: .06

Explanation: correct on khan

. List the four areas that are tested on the Brazelton scale.

Answers

I have a lot to say to my friends that

What are some good things to include in your reflection?

Answers

Answer

Clarify how analyzed subject will be useful in your future.

The Haitian Revolution was most influenced by the Enlightenment principles reflected in the passage and by which of the following Enlightenment thinkers?

Thomas Hobbes
Thomas Jefferson
Baron de Montesquieu
Jean-Jacques Rousseau

Answers

Answer:

D. Jean-Jacques Rousseau

Explanation:

Have A Wonderful Day !!

View the political cartoon titled "Slavery as It Exists in America. Slavery as It Exists in England” here.

What is the main purpose of the cartoon?

to call attention to the benefits of slavery
to criticize England’s abolition of slavery
to convince abolitionists that they were misinformed
to show the truth about the living conditions of the enslaved in America

Answers

Answer:

to convince abolitionists that they were misinformed

Explanation:

The part of the cartoon picturing American slavery shows happy slaves dancing with music. The British one shows sad and poor people. It is supposed to highlight how the British were the bad ones and that slavery was ok.

Would you accept lottery earnings if it meant a close one dying, but bringing everyone else out of poverty

Answers

Answer:

no why would u want ur family member to die

Answer:

nope

Explanation:

. ...............

Compare the definition of memory to the definition of learning

Answers

Explanation:

Learning: The practice of developing new ideas or habits that are reasonably durable.

Memory: Overhead understanding that has continued through information encoding, preservation, & recovery.

Based on this editorial, why is gerrymandering a major
concern? Check all that apply.
The practice implies that compromise is not
necessary.
The practice tends to favor Democrats over
Republicans.
Gerrymandering often results in a decline in voter
turnout.
Elected officials become more inclined to pander to
voters.
Gerrymandering makes it more difficult for people
to cast votes.

Answers

Answer:

the answer is 1, 3, and 4

Explanation:

Which denomination is the most popular in the US?

Answers

Answer: Christianity is the most popular domination, within that Catholic is the most dominated.

Philosophy Question:
is “nobody understands me but you” a statement or a sentence?

Answers

Answer:statement

Explanation:cause according to many sources that same statement is used in explaining feelings and meanwhile “understanding” that only another person understands them.

There are different kinds of statement. Nobody understands me but you is a Statement.

This is a declarative statements as it tell that only that person understand who I am and everything about me.

A statement is a statement because it is known to make a lot of sense when inquire even if it is true or false. An example is nobody understands me but you.

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According to Locke, what are the
limits of governmental power?
How are these limits reflected in
the U.S. Government?

Answers

Answer:

John Locke was an English philosopher, economist, and physician of the Enlightenment period. In his views on unwritten natural law as the basis of formal constitutional law, Locke made the social contract the basis of his plea for popular sovereignty, the idea that the monarch or the government should reflect the will of the people. Thus, for Locke, the social contract forms the agreement between the ruler and the people, and it is precisely the limit to the powers and attributions that the ruler has over its citizens.

In the United States, the social contract is embodied in the Constitution, which is the fundamental legal text of the nation that is responsible for recognizing civil rights and limiting the powers of the government.

The acceleration, in meters per second per second, of a race car is modeled by A(t)=t3−152t2+12t+10, where t is measured in seconds. What is the car's maximum acceleration on the time interval 0≤t≤6 ?

Answers

Answer:

  10.237 m/s²

Explanation:

The maximum acceleration will be at one end of the interval, or at a turning point in the interval. The turning points can be found where the derivative of acceleration is zero

  A'(t) = 3t^2 -304t +12

The quadratic formula will tell the zeros of this.

  t = (304±√(304^2 -4(3)(12)))/(2(3)) = (304 -√92272)/6 = (152 -√23068)/3

  t ≈ 0.0394891

Then the maximum acceleration is ...

  A(0.0394891) ≈ 10.23690 . . . . m/s^2

__

Additional comment

The maximum magnitude of acceleration is at t=6, where acceleration is ...

  A(6) = -5174 . . . . m/s^2

This is more than 500 g's in the negative direction, so the race car is not expected to survive that long.

__

The attached graph shows the acceleration curve for positive acceleration. The acceleration continues to decrease to a minimum of -5174 m/s^2 at the right end of the interval [0, 6].

Answer:

10. 237 m/s²

The car's maximum acceleration on the same time interval o<t<6.

Approximately how much water can an acre of corn transpire in one day?
500 to 1,000 gallons
1,000 to 2,000 gallons
3,000 to 4,000 gallons
More than 5,000 gallons

Answers

Answer: 3,000 to 4,000 gallons

Explanation:

Evapotranspiration causes a huge amount of water loss in plants. It happens when water leaves a plant as water vapor through its leaf surfaces after which the water joins the Hydrologic/ water cycle.

In the case of corn, it is said that an acre of corn is capable of transpiring between 3,000 to 4,000 gallons of water each day.

Pakisagot pooooo plsssssssss

Answers

Answer:

TamaMaliTamaTamaTama

Explanation:

That's my opinion and I hope it helps ^_^

#CARRYONLEARNING #STUDYWELL

Answer:

TamaTamaTamaTamaTama

Explanation:

Yan ang sa tingin kong sagot but I hope it helps

#READINGHELPSWITHLEARNING #CARRYONLEARNING #STUDYWELL

While working in a study group Joan asks a question and is given an incorrect answer by Dave, another memberthe whole group accepts the answer as true and writes it down. Although another member of the group has questions about the answer the entire group simply agrees with Dave's answer without checking it and ultimately they all get the question wrong on the FRO (14.5 Points)

Answers

Answer: groupthink , if I’m not mistaking

:

Which of the following is real capital?

Answers

Answer:

A

Explanation:

Answer:

D) A share if stock

Explanation:

Probably the most accurate answer out there, others are individual while a share can be one.

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HELP!!!! Urgent I need it right now 37 is what percent of 148? I also need 148 is what percent of 37? Thank you! Archie's needs to Factor the polynomial at the Right x2+8x-9 A Both factors will use subtractionB The second terms in the factor will have a sum of 8 C The second terms in the factors will have a product of -9 Find p when w = -10 and z = 4 The sun is located in the center of the system model because the sun: __________. *1. is the least massive object in the system, and more massive objects orbit less massive objects.2.is the most massive object in the system, and less massive objects orbit more massive objects3. has the lowest temperature, and hotter objects orbit cooler objects.4. has the highest temperature, and cooler objects orbit hotter objects. Which choice contains vivid sensory description?A)It was by far the worst snowstorm of the year.B)The snow fell icily on our sorely-chapped faces.C)The snowstorm caused a severe traffic jam on 1-58.D)By the morning, thousands of houses were without electrical power. what happends if you pour 1 litre of water on the surface of the moon?will it bounce? serouse answer please ! A sapling that started out 31 inches tall grew 3 inches per year. How tall was the sapling when it was 6 years old?13 inches40 inches49 inches18 inches The decline of both the Han Dynasty and the Roman Empire were a slow process. What of these factors was a catalyst for the decline of both these great powers? Some people say we learn more outside the classroom than inside it PLEASE HELP ILL GIVE YOU 100 POINTS IF CORRECT !! ASAP THANK YOU In 313, Constantine issued the Edict of Milan granting ________________________ a. all people in the Roman Empire freedom to worship whatever god they wished. b. artists the freedom to sell and display their works through the entire Roman Empire. c. the Jewish people the right to live freely across the entire Roman Empire. d. all citizens of the Roman Empire the right to worship at multiple churches. Please select the best answer from the choices provided A B C D What is the effect of the underlined sentenced on page 2.a) It conveys...b) It demonstrates...c) It show that...d) It reveals... Wat is the difference between an algebraic expression and an equaion? 06. Find the value of (a + b + c), ifa = 5,6 = 4 and c = 3. Multiply. Write in simplest form. 1/2 * 24Multiply. Write in simplest form. 2/13 * 26Multiply. Write in simplest form. 2/5 * 17Multiply. Write in simplest form. 18 * 1/4Multiply. Write in simplest form. 1/15 *18 Can someone release help where do i plot it and whats the answers to the table? Some buzz words that alerted Angry Birds developers to an issue with the gamewere "one-trick pony," "repetitive," or "needs more variety."TrueFalse Find the length of the third side to the nearest tenth.