A powerful womens group has claimed that men and

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Statistics for the Behavioral Sciences
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Chapter 15 / Exercise 13
Statistics for the Behavioral Sciences
Gravetter/Wallnau
Expert Verified
118.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. Assuming Wdesignates women’s responses and Mdesignates men’s, which of the following are the appropriate null and alternative hypotheses to test the group’s claim?a)H0: Mpp-0 versusH1: WMpp-< 0b)H0: Mpp-0 versusH1: WMpp-> 0c)H0: WMpp-= 0 versusH1: WMpp-d)H0: WMpp-0 versusH1: WMpp-= 0ANSWER: c TYPE: MC
W
W
0
DIFFICULTY: Moderate KEYWORDS: Z test, difference between two proportions, form of hypothesis
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Statistics for the Behavioral Sciences
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Chapter 15 / Exercise 13
Statistics for the Behavioral Sciences
Gravetter/Wallnau
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58 Two-Sample Tests119.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. Find the value of the test statistic.
DIFFICULTY: Moderate KEYWORDS: Z test, difference between two proportions, test statistic120.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. If the pvalue turns out to be 0.035 (which is notthe real value in this data set), then -
0
0
0
TYPE: MC DIFFICULTY: Moderate KEYWORDS: Z test, difference between two proportions, decision, conclusion121.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. Construct a 99% confidence interval estimate of the difference between the proportion of men and women who believe that sexual discrimination is a problem.
122.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. Construct a 95% confidence interval estimate of the difference between the proportion of men and women who believe that sexual discrimination is a problem.
123.A powerful women’s group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States. Of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. Construct a 90% confidence interval estimate of the difference between the proportion of men and women who believe that sexual discrimination is a problem.
TABLE 10-9A few years ago, Pepsi invited consumers to take the “Pepsi Challenge.” Consumers were asked to decide which of two sodas,Coke or Pepsi, they preferred in a blind taste test. Pepsi was interesting in determining what factors played a role in people’s taste preferences. One of the factors studied was the gender of the consumer. Below are the results of analyses comparing the taste preferences of men and women with the proportions depicting preference for Pepsi.Males: n= 109, pM= 0.422018Females: n= 52, pF= 0.25pMpF= 0.172018Z= 2.11825124.Referring to Table 10-9, to determine if a difference exists in the taste preferences of men and women, give the correct alternative hypothesis that Pepsi would test.
0
0
Two-Sample Tests 59
M
M
DIFFICULTY: Easy KEYWORDS: Z test, difference between two proportions, form of hypothesis

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