According to the Walker Loyalty Report of 3350 respondents, 1000 out of 1650 women and 935...

According to the Walker Loyalty Report of 3350 respondents, 1000 out of 1650 women and 935 out of 1700 men polled said that performance reviews at their jobs were fair.

a) Can it be proved at an alpha of 0.05 that the proportion of women who thing their performance reviews were fair is greater than the proportion of men?

b) Find the 95% confidence interval of the difference in proportions.

Solutions

Expert Solution

Answer :

a) we conclude that, at 0.05 level of significance that the proportion of wo who thing their performance reviews were fair is greater than the proportion of men.

orchestra answered 1 year ago

Next > < Previous

Related Solutions

According to a report issued by the CDC in 2013, 66.8 % of women 40 years...

According to a report issued by the CDC in 2013, 66.8 % of women 40 years of age and over had a mammogram within the last two years. An oncologist at the CDC would like to know if there has been a change in this percentage over the last two years. A random sample of 648 women (40 and older) is taken, and each is asked the date of their last mammogram. Verify that the assumptions have been satisfied to...

Brand loyalty and the Chicago Cubs. According to literature on brand loyalty, consumers who are loyal...

Brand loyalty and the Chicago Cubs. According to literature on brand loyalty, consumers who are loyal to a brand are likely to consistently select the same product. This type of consistency could come from a positive childhood association. To examine brand loyalty among fans of the Chicago Cubs, 371 Cubs fans among patrons of a restaurant located in Wrigleyville were surveyed prior to a game at Wrigley Field, the Cubs‚Äô home field.34 The respondents were classified as ‚Äúdie-hard fans‚Äù or...

5. (Excel exercise) According to a recent report, consumption of alcoholic beverages by young women of...

5. (Excel exercise) According to a recent report, consumption of alcoholic beverages by young women of drinking age has been increasing in the U.S. and Europe. Annual alcohol consumption data for a random sample of 20 young women in the United States is reported in the following table. X = Annual alcohol consumption (liters) X 266 170 164 93 82 222 102 0 199 115 113 93 174 130 171 110 97 169 0 130 a. Assuming that the population...

According to a 1996 report on full-term pregnancies by the American Medical Association, women pregnant with...

According to a 1996 report on full-term pregnancies by the American Medical Association, women pregnant with twins who received intensive prenatal care had an infant mortality rate of 5.4 deaths per thousand live births, while women pregnant with twins who received only adequate care had an infant mortality rate of 3.9 deaths per thousand live births. Does this suggest that a woman pregnant with twins should be concerned about seeking too much medical care? Explain fully in one or two...

According to a report by the American Cancer Society, more men than women smoke and twice...

According to a report by the American Cancer Society, more men than women smoke and twice as many smokers die prematurely than nonsmokers. In random samples of 200 males and 200 females, 62 of the males and 54 of the females were smokers. • Is there sufficient evidence to conclude that the proportion of males who smoke is greater than the proportion of females who smoke? α = .01 • Calculate the p-value associated with the test

Prepare short analysis report of maximum 2 pages ( 500 - 1000 words ) according to...

Prepare short analysis report of maximum 2 pages ( 500 - 1000 words ) according to the following case study . Read the case study and answer the questions : Aamod was born in a small rural village in Bangladesh . He spent his childhood years looking after his family ' s livestock . The community upheld high values , such as honesty and respect , but the people were desperately poor . He realized that he would have to...

A survey of US women with Ph.D.'s was conducted. Of the 102 respondents in marriages or...

A survey of US women with Ph.D.'s was conducted. Of the 102 respondents in marriages or long-term partnerships with men, 57% reported that their spouse/partner also held a doctorate degree. Construct a theoretical 90% confidence interval. The interval is: Select one: a. (49.0%, 64.7%) b. (48.9%, 65.1%) c. (47.1%, 66.7%) d. (47.4%, 66.6%) e. (44.4%, 69.6%) Based on the interval in the previous question, what group(s) can we make a conclusion about? Select one: a. All US women b. All...

According to the Stern Marketing Group, 9 out of 10 professional women say that financial planning...

According to the Stern Marketing Group, 9 out of 10 professional women say that financial planning is more important today than it was five years ago. Where do these women go for help in financial planning? Forty-seven percent use a financial advisor (broker, tax consultant, financial planner). Twenty-eight percent use written sources such as magazines, books, and newspapers. Suppose these figures were obtained by taking a sample of 530 professional women who said that financial planning is more important today...

According to the Stern Marketing Group, 9 out of 10 professional women say that financial planning...

According to the Stern Marketing Group, 9 out of 10 professional women say that financial planning is more important today than it was five years ago. Where do these women go for help in financial planning? Forty-seven percent use a financial advisor (broker, tax consultant, financial planner). Twenty-eight percent use written sources such as magazines, books, and newspapers. Suppose these figures were obtained by taking a sample of 610 professional women who said that financial planning is more important today...

According to literature on brand loyalty, consumers who are loyal to a brand are likely to...

According to literature on brand loyalty, consumers who are loyal to a brand are likely to consistently select the same product. This type of consistency could come from a positive childhood association. To examine brand loyalty among fans of the Chicago Cubs, 365 Cubs fans among patrons of a restaurant located in Wrigleyville were surveyed prior to a game at Wrigley Field, the Cubs' home field. The respondents were classified as "die-hard fans" or "less loyal fans." The study found...

Subjects