ince an instant replay system for tennis was introduced at a major tournament, men challenged 1407 referee calls, with the result that 425 of the calls were overturned. Women challenged 771 referee calls, and 213 of the calls were overturned. Use a 0.01 significance level to test the claim that men and women have equal success in challenging calls. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of male tennis players who challenged referee calls and the second sample to be the sample of female tennis players who challenged referee calls. What are the null and alternative hypotheses for the hypothesis test? A. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 not equalsp 2 B. Upper H 0 : p 1 not equalsp 2 Upper H 1 : p 1 equalsp 2 C. Upper H 0 : p 1 greater than or equalsp 2 Upper H 1 : p 1 not equalsp 2 D. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 less thanp 2 E. Upper H 0 : p 1 less than or equalsp 2 Upper H 1 : p 1 not equalsp 2 F. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 greater thanp 2 Identify the test statistic. zequals enter your response here (Round to two decimal places as needed.) Identify the P-value. P-valueequals enter your response here (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is ▼ greater than less than the significance level of alpha equals0.01 , so ▼ reject fail to reject the null hypothesis. There ▼ is not sufficient is sufficient evidence to warrant rejection of the claim that women and men have equal success in challenging calls. b. Test the claim by constructing an appropriate confidence interval. The 99 % confidence interval is enter your response here less thanleft parenthesis p 1 minus p 2 right parenthesisless thanenter your response here . (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits ▼ do not include include 0, there ▼ does does not appear to be a significant difference between the two proportions. There ▼ is sufficient is not sufficient evidence to warrant rejection of the claim that men and women have equal success in challenging calls. c. Based on the results, does it appear that men and women may have equal success in challenging calls? A. The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that women have more success. B. The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that men have more success. C. The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls. D. There is not enough information to reach a conclusion.
ince an instant replay system for tennis was introduced at a major tournament, men challenged 1407 referee calls, with the result that 425 of the calls were overturned. Women challenged 771 referee calls, and 213 of the calls were overturned. Use a 0.01 significance level to test the claim that men and women have equal success in challenging calls. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of male tennis players who challenged referee calls and the second sample to be the sample of female tennis players who challenged referee calls. What are the null and alternative hypotheses for the hypothesis test? A. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 not equalsp 2 B. Upper H 0 : p 1 not equalsp 2 Upper H 1 : p 1 equalsp 2 C. Upper H 0 : p 1 greater than or equalsp 2 Upper H 1 : p 1 not equalsp 2 D. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 less thanp 2 E. Upper H 0 : p 1 less than or equalsp 2 Upper H 1 : p 1 not equalsp 2 F. Upper H 0 : p 1 equalsp 2 Upper H 1 : p 1 greater thanp 2 Identify the test statistic. zequals enter your response here (Round to two decimal places as needed.) Identify the P-value. P-valueequals enter your response here (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is ▼ greater than less than the significance level of alpha equals0.01 , so ▼ reject fail to reject the null hypothesis. There ▼ is not sufficient is sufficient evidence to warrant rejection of the claim that women and men have equal success in challenging calls. b. Test the claim by constructing an appropriate confidence interval. The 99 % confidence interval is enter your response here less thanleft parenthesis p 1 minus p 2 right parenthesisless thanenter your response here . (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits ▼ do not include include 0, there ▼ does does not appear to be a significant difference between the two proportions. There ▼ is sufficient is not sufficient evidence to warrant rejection of the claim that men and women have equal success in challenging calls. c. Based on the results, does it appear that men and women may have equal success in challenging calls? A. The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that women have more success. B. The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that men have more success. C. The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls. D. There is not enough information to reach a conclusion.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Since an instant replay system for tennis was introduced at a major tournament, men challenged
1407
referee calls, with the result that
425
of the calls were overturned. Women challenged
771
referee calls, and
213
of the calls were overturned. Use a
0.01
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of male tennis players who challenged referee calls and the second sample to be the sample of female tennis players who challenged referee calls. What are the null and alternative hypotheses for the hypothesis test?
A.
Upper H 0
:
p 1
equalsp 2
Upper H 1
:
p 1
not equalsp 2
B.
Upper H 0
:
p 1
not equalsp 2
Upper H 1
:
p 1
equalsp 2
C.
Upper H 0
:
p 1
greater than or equalsp 2
Upper H 1
:
p 1
not equalsp 2
D.
Upper H 0
:
p 1
equalsp 2
Upper H 1
:
p 1
less thanp 2
E.
Upper H 0
:
p 1
less than or equalsp 2
Upper H 1
:
p 1
not equalsp 2
F.
Upper H 0
:
p 1
equalsp 2
Upper H 1
:
p 1
greater thanp 2
Identify the test statistic.
zequals
enter your response here
(Round to two decimal places as needed.)
Identify the P-value.
P-valueequals
enter your response here
(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
The P-value is
the significance level of
▼
greater than
less than
alpha
equals0.01
,
so
▼
reject
fail to reject
▼
is not sufficient
is sufficient
b. Test the claim by constructing an appropriate confidence interval.
The
99
%
confidence interval is
enter your response here
less thanleft parenthesis p 1 minus p 2 right parenthesisless thanenter your response here
.
(Round to three decimal places as needed.)
What is the conclusion based on the confidence interval?
Because the confidence interval limits
0, there
appear to be a significant difference between the two proportions. There
evidence to warrant rejection of the claim that men and women have equal success in challenging calls.
▼
do not include
include
▼
does
does not
▼
is sufficient
is not sufficient
c. Based on the results, does it appear that men and women may have equal success in challenging calls?
A.
The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that women have more success.
B.
The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that men have more success.
C.
The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls.
D.
There is not enough information to reach a conclusion.
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