A 2014 study examined how college students feel about solitude. The reserachers gave the randomly selected...

A 2014 study examined how college students feel about solitude. The reserachers gave the randomly selected volunteers in the study a choice between sitting in solitude for 15 minutes or volunatrily giving themselves an electrical shock. Of the 18 men in the study, 12 gave themselves an electrical shock, while 6 of the 24 women in study gave themselves an elecrical shock. Bower, B., "People will take pain over being left alone with their thoughts, " Science News, 186(3), August 9, 2014, p.12.

A: What is the population of interest for this study?

B: Find a 95% confidence interval for the women in this study.

C: Find a 95% confidence interval for the men in this study. Clearly interpret this interval.

D: Using only the intervals you found and not the samples, does it appear that there is a difference in the feelings about solitude between men and women? Clearly explain why

Expert Solution

A: Researcher wants to know how college students feel about solitude so population will be all college students in 2014.

B:

C:

Interpretation: We are 95% confident that true population proportion of men gave themselves an electrical shock lie the interval (0.0767, 0.4233).

D:

Since confidence intervals of part b and part c do not overlap so there is evidence to conclude that there is a difference in the feelings about solitude between men and women.

orchestra answered 1 year ago

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