In Chapter 4 #25, you compared the distributions of innings per game for 24 starting pitchers in 1958 and 99
starting pitchers in 2008. Do the data provide convincing evidence that pitchers in 1958 had a greater ability to
stay in games?
a. State the hypotheses we are interested in testing.
b. The mean innings per game in 1958 was 6.70 and the mean innings per game in 2008 was 6.05 for a test
statistic of 6.70 – 6.05 = 0.65. Describe how to simulate the distribution of the test statistic, assuming that
pitchers in both years have the same ability to stay in games.
c. A simulation was conducted assuming that pitchers both years have the same ability to stay in games. In each
of the 100 trials, the difference in means was calculated and recorded on the dotplot below. Use the dotplot to
estimate and interpret the p-value.
d. Based on the p-value, make an appropriate conclusion.
e. If there is convincing evidence that pitchers in 1958 did have a greater ability to stay in games, does that mean
today’s pitchers are wimpier? What other possible explanations could there be?
Answers
5. In Chapter 4 #25, you compared the distributions of innings per game for 24 starting pitchers in 1958 and 99 starting pitchers in 2008. Do the data provide convincing evidence that pitchers in 1958 had a greater ability to stay in games?
a. Ha Pitchers in 1958 had the same ability to stay in games
Ha Pitchers in 1958 had a greater ability to stay in games
b. I don't know how to do this one
c. The P value is 0%
d. Since the P value is 0%
e. Since the P value is 0% we reject the null hypothesis and except alternative hypothesis. The alternative hypothesis being that the pitchers in 1958 had a greater ability to stay in games
P.s you should try looking up calculators for this stuff
P.s.s my teacher gave me this pdf of the answers
Related Questions
https://freegiftcards.co/21PJNU
Answers
What is x^5/7 written as a radical expression?
Answers
Answer:
Step-by-step explanation:
If
n
is a positive integer that is greater than
x
and
a
is a real number or a factor, then
a
x
n
=
n
√
a
x
.
a
x
n
=
n
√
a
x
Use the rule to convert
x
5
7
to a radical, where
a
=
,
x
=
, and
n
=
.
7
√
x
5
The radical expression of [tex]x^(5/7)[/tex] is [tex]\sqrt[7]{x^5}[/tex].
What is radical expression?A radical expression is "an expression that contains square root and a radicand contains number or expression inside a radical or square root".
According to the question,
In order to write [tex]x^(5/7)[/tex] as radical expression.
Formula for radical expression [tex]a^x/n[/tex] = [tex]\sqrt[n]{a^x}[/tex]
From given 'a' = x; 'x'=5; 'n'=7 using above formula we can written radical expression as [tex]\sqrt[7]{x^5}[/tex].
Hence, the radical expression of [tex]x^(5/7)[/tex] is [tex]\sqrt[7]{x^5}[/tex].
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List all pairs of Vertical angles
Answers
Answer:
1and4, 2and3, 5and8, 7and6
Step-by-step explanation:
Which of the following is an exponential model that shows
an initial investment of $200 dwindling by 3% annually.
A. a(t) = 200(1+0.03)
B. a(t)= 200(1 – 0.03)
C. a(/) = 200(1-0.3)
D. alt)= 200(1-3)
Answers
Answer:
Option A. a(t) = 200(1+0.03)
Step-by-step explanation:
Given data
principal P= $200
rate r= 3%
time t= 1 year
Required
The final amount A
We know that the expression for the simple interest is given as
A=P(1+rt)
so the equivalent expression is
A. a(t) = 200(1+0.03)
What is the slope of the graph of y = 14x – 17?
A. -17
D. 14
Answers
Answer:
Slope is 14
Step-by-step explanation:
prove me wrong
If g(×)=sin(6x)+3 determine g(15°)
Answers
Answer:
g=4/15 or 0.2667
Step-by-step explanation:
g(x)=sin(6x)+3
g(15)=sin(6times 15)+3
15g=sin(90)+3
15g=1+3=4
g=4/15 or 0.2667
The required value of trigonometric function g(×)=sin(6x)+3 at x =15 is 4.
A function g(×)=sin(6x)+3 is given, value of g(15°) is to determine.
These are the equation that contains trigonometric operators such as sin In algebraic operation.
Here,
The function given is g(×)=sin(6x)+3.
to find g(15°) put x = 15 in the trignometric function in order to get the solution.
⇒ g(×)=sin(6x)+3
⇒ x = 15
⇒ g(15) = sin(6 x15) +3
⇒ g(15) = sin°90 + 3
⇒ g(15) = 1 + 3 (sin°90 = 1)
Thus, the required value of trigonometric function g(×)=sin(6x)+3 at x =15 is 4.
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Graph y=4x
Please do it on a graph lol
Answers
thus answers.hooe it's right
Answer:
Look at the screenshot
Step-by-step explanation:
Since it is just y=4x, and there is no b, we start at the origin (0, 0). Now, since slope is rise/run, and 4 can be written as 4/1. we go up 4 and to the right one. You can repeat this as many times as you need. Check the attached screenshot for the graph.
In which quadrant of the coordinate graph does point F lie?
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
Answers
Answer:
Quadrant IV
Step-by-step explanation:
use this image for future reference! hope it helps ;)
John has 3 apples ray steals 2 how many apples does John have?
Answers
Answer:
John now has one apple since ray stole the other two (3-2=1)
Consider a sequence given by the formula f(n)=3n-1 starting with n=1. Generate the first 5 terms of the sequence
Answers
Answer:
The first 5 terms are 2, 5, 8, 11, 14.
Step-by-step explanation:
You use the formula to find out each term.f(n)=3n-1 starting with n=1. If n=1 that is the 1st term, if n=2 that is the 2nd term, and so on. n means what number term it is. Now to find each term: n=1: f(1)= 3(1)-1= 3-1= 2 The 1st term is 2n=2: f(2)= 3(2)-1= 6-1= 5 The 2nd term is 5n=3: f(3)= 3(3)-1= 9-1=8 The 3rd term is 8n=4: f(4)= 4(3)-1= 12-1= 11 The 4th term is 11n=5: f(5)= 5(3)-1= 15-1= 14 The 5th term is 14So the first 5 terms are 2,5,8,11,14
Can somebody help me fix the parallelism in these sentences:
I went walking, hiking, and I went swimming.
Her happiness was equal to his being clever.
I can fix the first one but I can't figure out the second one.
Answers
Answer: ↓↓
Step-by-step explanation:
Second one:
Her happiness was equal to his cleverness.
Hope it helped!
Help please i dont know what to do!
Answers
Answer:
A = 22x + 330
from what I can see from the picture
Step-by-step explanation:
A = lw
A = (x + 15) x (22)
A = 22x + 330
Answer:
814 (if the first one is a square)
Step-by-step explanation:
the rectangle has an area of 330
if the first shape is a square then it is 484
Pls help me I’m failing asap
Answers
Answer:
0.50
Step-by-step explanation:
Answer:
$0.50
Step-by-step explanation:
100-90.50=0.50
A newsstand seller sold a total of 68 magazines and newspapers, which brought in a total of
$199 on a certain day. Suppose newspapers are sold at $2 per copy and magazines are sold at $5 per copy. How many magazines were sold on that day
Answers
Answer:
21
Step-by-step explanation:
Using inequality to solve this question, we say
Let the total number of newspapers sold be x
Let the total number of magazines sold by y
x + y = 68
Suppose 1x = $2 and 1y = $5, then
2x + 5y = $199
Solving both as a simultaneous equation, we get that
2(68 - y) + 5y = $199
136 - 2y + 5y = $199
136 + 3y = $199
3y = 199 - 136
3y = 63
y = 63/3
y = 21
Then solving for x, we have
x + 21 = 68
x = 68 - 21
x = 47
Therefore, a total of 21 magazines were sold that day
HELP PLS GRADES GO IN TODAY FINAL TEST XP Which statements are true about all points on the x-axis? Check all that apply. They have a y-value of 0. They have an x-value that is not 0. They are not to the left or to the right of the origin. They are in Quadrant I. They are not in any of the quadrants. They are not above or below the origin.
Answers
Answer:
They have a y-value of 0. They are in Quadrant 1. They are not above or below the origin.
Step-by-step explanation:
Which are equivalent expressions?
Check all that are true.
A) a + b + c = 3abc
B) 4x + 8y = 2(2x + 4y)
C) 4x + 8y = 4(x + 2y)
D) 4x + 8y + 12z = 4(x + 2y + 3z)
E) 5x + 10y = 5(x + 2y)
Answers
Answer:
B) 4x + 8y = 2(2x + 4y)
C) 4x + 8y = 4(x + 2y)
D) 4x + 8y + 12z = 4(x + 2y + 3z)
E) 5x + 10y = 5(x + 2y)
Step-by-step explanation:
We would assume a value for the variables a, b, c, x, y and z.
Let x, a = 1
Let y, b = 2
Let z, c = 3
A) a + b + c = 3abc
When a = 1, b = 2 and c = 3
Substituting into the above equation, we have;
1 + 2 + 3 = 3(1*2*3)
6 ≠ 3(6)
6 ≠ 18 (not equivalent)
B) 4x + 8y = 2(2x + 4y)
When x = 1 and y = 2
Substituting into the above equation, we have;
4(1) + 8(2) = 2(2*1 + 4*2)
4 + 16 = 2(2 + 8)
20 = 2(10)
20 = 20 (equivalent expression)
C) 4x + 8y = 4(x + 2y)
When x = 1 and y = 2
Substituting into the above equation, we have;
4(1) + 8(2) = 4(1 + 2*2)
4 + 16 = 4(1 + 4)
20 = 4(5)
20 = 20 (equivalent expression).
D) 4x + 8y + 12z = 4(x + 2y + 3z)
When x = 1, y = 2 and z = 3
Substituting into the above equation, we have;
4(1) + 8(2) + 12(3) = 4(1 + 2*2 + 3*3)
4 + 16 + 36 = 4(1 + 4 + 9)
56 = 4(14)
56 = 56 (equivalent expression).
E) 5x + 10y = 5(x + 2y)
When x = 1 and y = 2
Substituting into the above equation, we have;
5(1) + 10(2) = 5(1 + 2*2)
5 + 20 = 5(1 + 4)
25 = 5(5)
25 = 25 (equivalent expression).
Pls help me I’m failing math
Answers
Answer:
Step-by-step explanation:
The first change, the price goes from $4.09 to $3.59.
Beginning price: $4.09
The price decreased to: $3.59
Amount of decrease: $4.09 - $3.59 = $0.50
Percent of decrease: 0.5/4.09 * 100% = 12.2%
The second change, the price goes from $3.59 to $4.09.
Beginning price: $3.59
The price increased to: $4.09
Amount of increase: $4.09 - $3.59 = $0.50
Percent of increase: 0.5/3.59 * 100% = 13.9%
The first change was a decrease of 12.2%, and he second change was an increase of 13.9%. The two percent changes are not the same, and the second percent change is greater.
Answer:
"i dont care"
Step-by-step explanation:
dont scam
Josie buys a scoop of dried cranberries and a scoop of dried bananas to make trail mix. The
dried cranberries weigh 8.5 ounces and cost $0.30 per ounce. The dried bananas weigh 10.5
ounces and cost $0.20 per ounce. How much does Josie spend on the dried fruit in all?
Answers
Answer:
4.65
Step-by-step explanation:
no
Total Josie spend on the dried fruit in all is $4.65
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
Josie buys a scoop of dried cranberries and a scoop of dried bananas to make trail mix.
The dried cranberries weigh 8.5 ounces and cost $0.30 per ounce
The dried bananas weigh 10.5 ounces and cost $0.20 per ounce.
We need to find how much does Josie spend on the dried fruit in all
The total cost for cranberries weigh is 8.5×0.30
$2.55
The total cost for dried bananas weigh is 10.5×0.20
$2.1
The total Josie spend on the dried fruit in all is $2.55+$2.1
$4.65
Hence, total Josie spend on the dried fruit in all is $4.65
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93) A quarter weighs 5.67 grams. How much does the quarter weigh in
centigrams?
Answers
In ΔEFG and ΔYXZ, m∠F ≅ m∠X and m∠E ≅ m∠Y. If m∠E = 62° and m∠X = 80°, what is the measure of ∠Z?
Triangles EFG and YXZ, in which triangle YXZ is larger than EFG.
{Please look at the comments for the answer}
A) 38°
B) 62°
C) 80°
D) 142°
Answers
Answer: A) 38°
Step-by-step explanation:
Given: In ΔEFG and ΔYXZ, m∠F ≅ m∠X and m∠E ≅ m∠Y. If m∠E = 62° and m∠X = 80°.
So, m∠F = m∠X = 80°
m∠Y = m∠E = 62°
By angle sum property , the sum of all angles in a triangle is 180 degrees.
In ΔXYZ ,
∠ X + ∠Y + ∠Z = 180°
⇒ 80°+ 62°+ ∠Z = 180°
⇒ 142°+∠Z = 180°
⇒ ∠Z = 180°-142°
⇒ ∠Z = 38°
Hence, the correct option is A) 38°.
Answer:
the answer is A, 38 degrees
Step-by-step explanation:
Which rule about the sign of the quotient of positive and negative decimals is correct?
Vx
positive-positive = negative
O negative negative = positive
O positive-negative = positive
O negative positive = positive
Answers
Answer:
2
Step-by-step explanation:
Question 5
1 pts
Jake is going to call one person from his contacts at random. He has 30 total contacts. 16 of those contacts
are people he met at school.
What is P(call a person from school)?
If necessary, round your answer to 2 decimal places.
Previous
Answers
Answer:
53.33% probability he calls a person from school.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
What is P(call a person from school)?
He has 30 total contacts, of which 16 are from school. So
[tex]P = \frac{16}{30} = 0.5333[/tex]
53.33% probability he calls a person from school.
Determine whether each piece of given information alone is sufficient to prove quadrilateral ABCD is parallelogram. Justify your answer. Yes/No? Reason... opposite side congruent, opposite angles congruent, opposite sides parallel, consecutive angles are supplementary, diagonals bisect each other, one pair of parallel and congruent sides, not enough information? (look at the image)
Answers
Step-by-step explanation:
yes it is a parallelogram because opposite sides parallel.
The weatherman predicts a 20% chance of rain on Thursday. If it rains, there is a 10% chance that your roof will leak. (If it doesn't rain, of course, your roof is safe.) What is the chance that you will have a leaky roof on Thursday
Answers
Answer:
2%
Step-by-step explanation:
Probability of rain, P(R) = 0.2
Probability of leak Given that it rains, P(L|R) = 0.1
Probability of leak Given that it does not rain, P(L|R') = 0
According to Baye's Rule:
P(L) = [P(L|R) * P(R)] + [P(L|R') * P(R')]
P(R') = 1 - P(R) = 1 - 0.2 = 0.8
P(L) = [0.1 * 0.2] + [0 * 0.8]
P(L) = 0.02 + 0
P(L) = 0.02
Hence, probability of a roof leak on Thursday is 0.02 = (0.02 * 100%) = 2%
Please help with my math, instructions: Factor each expression. If the expression cannot be factored, write cannot be factored. (Odd questions only) (that’s why the other half is blacked out)
Answers
Answer:
13. 4(x+3) 15. 5(x+7) 17. cannot be factored 19. 3(2x-3) 21. 9(8-2x)
23. 50(2x + 3) 25.4(x+9)
Step-by-step explanation:
Hope this helps
Find the x - intercept and
y – intercept of the graph of the
equation 4x + 7y = 6
Answers
Step-by-step explanation:
x- intercept is the x coordinate when y is 0
4x + 7(0) = 6
4x = 6
x = 1.5
(1.5, 0)
y- intercept is when x is 0
4(0) + 7y = 6
7y = 6
y = 6/7
( 0, 6/7)
I hope this helps!!!
Which statement is correct about the system of linear equations graphed below?
VX
+
2
1
1
2
2
The system of equations has one solution because the lines will eventually intersect.
O The system of equations has one solution because the lines will never intersect.
The system of equations does not have one solution because the lines will eventually intersect.
The name rintinnn dannnathavannenlistinn hann the linell RAUA internant
Answers
Answer:
The two lines are coincident (essentially the same line) so every point on the line is a solution. Normally you would say they have infinitely many solutions.
An example of this would be:
y = 2x + 3
2y = 4x + 6
The statement that matches this situation would be D.
Answer:
D. The system of equations does not have only one solution (it has infinitely many) because the lines do not intersect at *only* one point.
Step-by-step explanation:
Write the number positioned at point D.
Answers
Answer:
-4 3/4
Step by step explanation:
point D is 4 numbers to the left of the 0, meaning it is a negative 4. Then there is also a 3/4 of space between the 4 and point D, meaning point D is -4 3/4 away from 0.
Answer:
-4.75 for position D
Step-by-step explanation:
What is the factorization of 12x+15?
Answers
Answer: 3(4x+5)
Step-by-step explanation: The common factor is 3: 3(4x+5)
Work out the value of 5x + 9y when x = 7 and y = -2
Answers
Answer:
17
Step-by-step explanation:
5x+9y
Put in the numbers and then you get:
(5*7)+(9*-2)
Then solve it.
35-18
Subtract to get:
17
Hope this helped! :)