League A teams visit League B teams, the League A pitcher must bat. So, if the DH does result in more runs, it would be expected that league A teams will score more runs in League A park than when visiting League B parks. To test this cl random sample of runs scored by league A teams with and without their DH is given in the accompanying table Complete parts a) through d) below a) Draw side-by-side boxplots of the number of runs scored by League A teams with and without their DH Choose the correct graph below OA OB. Q OC. B 10 xxx G Q Q O D. B RIMME 10 10 Does there appear to be a difference in the number of runs between these situations? OA. No because the number of runs scored in a League A park is about the same as the number of runs scored in a League B park OB. No but the number of runs scored in a League A park appear to be slightly higher than the number of runs scored in a League B park. OC. Yes because the number of runs scored in a League A park appear to have a higher median than the number of runs scored in a League B park OD. D. Yes because the number of runs scored in a League B park appear to have a higher median than the number of runs scored in a League A park Q Q Sample of Runs League A Park (with DH) 2 3 6 6 8 1 3 7 6 4 4 12 5 6 5 6 5 9 9 3 14 4 6 1 2 6 4 3 3 Full data set League B Park (without DH) 5 5 4 7 2 9 10 1 1 3 2 7 6 8 3 5 5 13 7 2 5 14 7 0 2 4 2 2 4 9 3 2

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CT: Chapter Test
Problem 5CT: A commuter must travel from Ajax to Barrie and back every day. Four roads join the two cities. The...
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Complete a-c

for c do we reject or accept the p-value due to sufficient or insufficient evidence?

b) Explain why a hypothesis test may be used to test whether the mean number of runs scored for the two types of ballparks differ.
Select all that apply.
A. Each sample is obtained independently of the other.
B. Each sample is a simple random sample.
C. Each sample has the same sample size.
D. Each sample size is large.
E. Each sample size is small relative to the size of its population.
c) Test whether the mean number of runs scored in a League A park is greater than the mean number of runs scored in a League B park at the a= 0.01 level of significance.
Determine the null and alternative hypotheses for this test. Let HA represent the mean number of runs scored by a League A team in a League A park and let μg represent the mean number of runs scored by a League A team in a League B park.
Ho
versus H₁
Find to, the test statistic for this hypothesis test.
to =
(Round to two decimal places as needed.)
Determine the P-value for this test
P-value= (Round to three decimal places as needed.)
Transcribed Image Text:b) Explain why a hypothesis test may be used to test whether the mean number of runs scored for the two types of ballparks differ. Select all that apply. A. Each sample is obtained independently of the other. B. Each sample is a simple random sample. C. Each sample has the same sample size. D. Each sample size is large. E. Each sample size is small relative to the size of its population. c) Test whether the mean number of runs scored in a League A park is greater than the mean number of runs scored in a League B park at the a= 0.01 level of significance. Determine the null and alternative hypotheses for this test. Let HA represent the mean number of runs scored by a League A team in a League A park and let μg represent the mean number of runs scored by a League A team in a League B park. Ho versus H₁ Find to, the test statistic for this hypothesis test. to = (Round to two decimal places as needed.) Determine the P-value for this test P-value= (Round to three decimal places as needed.)
In baseball, League A allows a designated hitter (DH) to bat for the pitcher, who is typically a weak hitter. In League B, the pitcher must bat. The common belief is that this results in League A teams scoring more runs. In interleague play, when
League A teams visit League B teams, the League A pitcher must bat. So, if the DH does result in more runs, it would be expected that league A teams will score more runs in League A park than when visiting League B parks. To test this claim, a
random sample of runs scored by league A teams with and without their DH is given in the accompanying table Complete parts a) through d) below.
a) Draw side-by-side boxplots of the number of runs scored by League A teams with and without their DH. Choose the correct graph below.
O A
B.
O C.
B
A
0
5
10
10
15
XXX
15
Does there appear to be a difference in the number of runs between these situations?
O D.
B
A
B
5
10
10
OA. No because the number of runs scored in a League A park is about the same as the number of runs scored in a League B park.
B. No but the number of runs scored in a League A park appear to be slightly higher than the number of runs scored in a League B park.
C. Yes because the number of runs scored in a League A park appear to have a higher median than the number of runs scored in a League B park.
OD. Yes because the number of runs scored in a League B park appear to have a higher median than the number of runs scored in a League A park.
b) Explain why a hypothesis test may be used to test whether the mean number of runs scored for the two types of ballparks differ.
XX
15
X
15
Q
Sample of Runs
Full data set
League A Park (with DH)
6 2
3
6
8
1
3
7
6
4
12
5
6
13
9
5
6
3
2
5 5
14
14
7 0
9
4
6
League B Park (without DH)
1 5 5
4 7
2
4
9
3
2
6433
68355
2
2 9
2
4
1
10
1
791
2 7
Transcribed Image Text:In baseball, League A allows a designated hitter (DH) to bat for the pitcher, who is typically a weak hitter. In League B, the pitcher must bat. The common belief is that this results in League A teams scoring more runs. In interleague play, when League A teams visit League B teams, the League A pitcher must bat. So, if the DH does result in more runs, it would be expected that league A teams will score more runs in League A park than when visiting League B parks. To test this claim, a random sample of runs scored by league A teams with and without their DH is given in the accompanying table Complete parts a) through d) below. a) Draw side-by-side boxplots of the number of runs scored by League A teams with and without their DH. Choose the correct graph below. O A B. O C. B A 0 5 10 10 15 XXX 15 Does there appear to be a difference in the number of runs between these situations? O D. B A B 5 10 10 OA. No because the number of runs scored in a League A park is about the same as the number of runs scored in a League B park. B. No but the number of runs scored in a League A park appear to be slightly higher than the number of runs scored in a League B park. C. Yes because the number of runs scored in a League A park appear to have a higher median than the number of runs scored in a League B park. OD. Yes because the number of runs scored in a League B park appear to have a higher median than the number of runs scored in a League A park. b) Explain why a hypothesis test may be used to test whether the mean number of runs scored for the two types of ballparks differ. XX 15 X 15 Q Sample of Runs Full data set League A Park (with DH) 6 2 3 6 8 1 3 7 6 4 12 5 6 13 9 5 6 3 2 5 5 14 14 7 0 9 4 6 League B Park (without DH) 1 5 5 4 7 2 4 9 3 2 6433 68355 2 2 9 2 4 1 10 1 791 2 7
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