18231753
Description
Quiz by Quinn Burke, updated more than 1 year ago
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Created by Quinn Burke
almost 5 years ago
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Question 1
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1a) The first sample is male tennis players who challenged ref calls and the second sample is female tennis players who challenged ref calls.
Answer
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H0: P1= P2 H1: P1>P2
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H0: P1=/=P2 H1: P1= P2
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H0: P1= P2 H1: P1< P2
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H0: P1_<_ P2 H1: P1=/= P2
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H0: P1_>_ P2 H1: P1=/=P2
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H0: P1=P2 H1: P1=/= P2
Question 2
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1a) Find the Z-score (Round to two decimal places as needed)
Answer
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Z=-8.27
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Z=-8.26
Question 3
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1a) Find the P-Value (Round to three decimal places as needed)
Answer
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0.000
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1.411
Question 4
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1a) What is the conclusion based on the hypothesis?
Answer
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The p-value is greater than the significance level of 0.05, so fail to reject H0. There is not sufficient enough evidence to warrant rejection of the claim that women and men have equal success in challenging calls.
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The p-value is less than the significance level of 0.05, so reject H0. There is sufficient enough evidence to warrant rejection of the claim that women and men have equal success in challenging calls.
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The p-value is greater than the significance level of 0.05, so reject H0. There is not sufficient enough evidence to warrant rejection of the claim that women and men have equal success in challenging calls.
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The p-value is less than the significance level of 0.05, so fail to reject H0. There is sufficient enough evidence to warrant rejection of the claim that women and men have equal success in challenging calls.
Question 5
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1b) Test the claim using a confidence interval with 95% confidence. (Round to three decimal places as needed.)
Answer
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-.203<(P1-P2)<-.125
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-2026<(P1-P2)<-.1249
Question 6
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1b) What conclusion can be based on the interval testing?
Answer
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Because the confidence intervals do not include 0, there does appear to be a significant difference between the two proportions. There is sufficient enough evidence to warrant rejection of the claim that men and women may have equal success in challenging calls.
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Because the confidence intervals include 0, there does not appear to be a significant difference between the two proportions. There is not sufficient enough evidence to warrant rejection of the claim that men and women may have equal success in challenging calls.
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Because the confidence intervals do not include 0, there does not appear to be a significant difference between the two proportions. There is sufficient enough evidence to warrant rejection of the claim that men and women may have equal success in challenging calls.
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Because the confidence intervals do not include 0, there does not appear to be a significant difference between the two proportions. There is not sufficient enough evidence to warrant rejection of the claim that men and women may have equal success in challenging calls.
Question 7
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1746 referee calls with the result that 611 of the calls were overturned. Women challenged 950 referee calls, and 488 of the calls were overturned.
1c) Based on the results, does it appear that men and women may have equal success in challenging calls?
Answer
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The confidence interval suggests that there is no significant difference between the success of me and women in challenging calls.
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The confidence interval suggests that there is a significant difference between the success of men and women when challenging calls. It is reasonable to speculate that women have more success in challenging calls.
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The confidence interval suggests that there is a significant difference between the success of men and women when challenging calls. It is reasonable to speculate that men have more success in challenging calls.
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There is not enough information to reach a conclusion
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