The best point forecast of the population proportion is p = 0.6157, the margin of error for the poll is E = 0.0414, and the confidence interval is CI = 0. (0.5743, 0.6571)
What is a poll?Opinion polls are typically designed to represent a population's opinions by asking a series of inquiries and then trying to extrapolate broad generalizations in ratio or within confidence intervals. A pollster is an individual who conducts polls.
We have been given;
n = 916 people participated in the poll.
x = 564 is the number of people who said yes.
The formula would yield the population proportion;p = x/n
p = 564/916
p = 0.6157
The formula for the margin of error is;E = (z_α/2)√(p^(1 - p^)/n)
Where;
(z_α/2) is the critical value at the given confidence level.
Critical value z_α/2 for confidence level of 99% from tables is: 2.576.
So,
E = 2.576√(0.6157(1 - 0.6157)/916)
E = 0.0414
Formula for the confidence interval is;CI = p^ ± (z_α/2)√(p^(1 - p^)/n)
From B it can be known that
(z_α/2)√(p^(1 - p^)/n) = 0.0414
So,
CI = 0.6157 ± 0.0414
CI = (0.6157 - 0.0414), (0.6157 + 0.0414)
CI = (0.5743, 0.6571)
Thus, the answer for part a, b, and c is p = 0.6157, E = 0.0414, and CI = (0.5743, 0.6571) respectively.
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Your question seems incomplete, the missing part of question is:
(a) Find the best point estimate of the population proportion p.
(b) Identify the value of the margin of error E.
(c) Construct the confidence interval.
The low-pressure side of the system must not be pressurized to more than_________ when testing for leaks.
The low-pressure side of the system must not be pressurized to more than the low-side design pressure when testing for leaks. The correct option is C.
What is leak detection system?A leak detection system (LDS) is a system that detects and alerts the operator to any breach of integrity.
The flow of water through a pipeline is monitored by a leak detection system. When abnormal behavior is detected, the system shuts down the water supply to the entire house by closing a valve within the leak detector.
When testing for leaks, the low-pressure side of the system must not be pressurized above the low-side design pressure.
Thus, the correct option is C.
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Your question seems incomplete, the missing options are:
A. 75paig.
B. 200 psig.
C. The low-side design pressure.
D. Atmospheric pressure.
You are conducting an experiment on the effects of fertilizer on the growth of three types of plants, all grown from seed. Multiple plants for each type will be grown. Which action must be done to aid your experiment?
A.
Give fertilizer to all the plants of one type, and don’t give fertilizer to any plants of the other two types.
B.
Give fertilizer to all the plants of two types, and don’t add fertilizer to any plants of the third type.
C.
For each plant type, either add fertilizer to all the plants or don’t add fertilizer to any of the plants.
D.
For each plant type, add fertilizer to some of the plants and don’t add fertilizer to some of the plants.
In describing the relationship between Amy and the narrator, the narrator highlights a distinction between Amy’s
Answer:
an army and the narator hoghlites the organic reason for the distinction anys
A successful basketball player has a height of 6 feet 6 inches, or 198 cm. Based on statistics from a data set, his height converts to the z score of 3.38. How many standard deviations is his height
K above the mean?
The player's height is standard deviation(s) above the mean.
(Round to two decimal places as needed.)
The player's height is 3.38 standard deviations above the mean.
What does standard deviations mean?The standard deviation refers to a measurement of the data's dispersion from the mean. When the standard deviation is low, the data are concentrated around the mean, and when it is large, the data are widely dispersed.
A low standard deviation indicates that the data are tightly grouped around the mean, while a high standard deviation indicates that the data are widely dispersed (less dependable) (more reliable). It describes the degree to which individual responses to a query "deviate" from the mean." The SD reveals to the researcher how dispersed the responses are—are they centered around the mean or dispersed widely.
This will be calculated as:
Z = 198 - u / SD = 3.38..
198 = 3.38SD + u
Therefore, the player's height is 3.38 standard deviations above the mean.
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Can someone please help!!!!
Answer:
Diaologue
Explanation:
Suppose the following pairs of points are points on a linear graph. Find the slope and -intercept of
the equation that would model the linear relationship.
(−5,5) (5,2)
Answer:
y = (-3/10) + 7/2
in decimal,
y = -0.3 + 3.5
Explanation:
Equation of a line in slope-intercept form is
y = mx + b
m = slope = rise/run = (y2-y1)/(x2-x1) for any two points (x1, y1) and (x2, y2)
b is the y-value where the line intercepts the y-axis and is the value of y when x = 0
We have two points (−5,5) (5,2)
So m = (2 - 5)/( 5 - (-5) ) = -3/(5 + 5) = -3/10
So equation of line is
y = (-3/10)x + b
Plug in one of the points into this equation to find b
Take point( 5, 2)
We get
2 = (-3/10)(5) + b
2 = -15/10 + b
2 = - 3/2 + b
Add 3/2 to both sides
2 + 3/2 = b
or
b = 2 + 3/2 = 4/2 + 3/2 = (4+3)/2 = 7/2
So equation of line is
y = -3x/10 + 7/2
In decimal,
y = -0.3 + 3.5
Never give up and there is no such thing as failure.
Answer:
Tony Robbins
Explanation:
:) amen
A set of interacting parts forming a complex whole is a __________
A set of interacting parts forming a complex whole is known to be called a system.
What is a system?A system is known to be a group of components or elements arranged for a specific objective.
Note that the phrase can refer to both the system's parts as well as the structure or plan itself.
The Types of Systems are:
Physical or abstract systems.Open or closed systems.Deterministic or probabilistic systems.Man-made information systems.Therefore, A set of interacting parts forming a complex whole is known to be called a system.
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When rain is in the forecast, ___ clouds are likely to appear.
Answer:
dark
Explanation:
more water in the cloud causes it to become dark and heavy therefore that's why dark clouds produce rain
what time and day will it be 153hr 16min after Friday 2:52pm
The time is at Friday and 12:08 AM