A professor asked her sophomore students, \"How many drinks do you typically hav

Question

A professor asked her sophomore students, "How many drinks do you typically have per session? (A drink is defined as one 12-oz beer, one 4-oz glass of wine, or one 1-oz shot of liquor.)" Some of the students did not drink. The table gives the responses of the female and male students who did drink. It is likely that some of the students exaggerated a bit. The sample is all students in one large sophomore-level class. The class is popular, so we are tentatively willing to regard its members as an SRS of sophomore students at this college. Drinks per session claimed by male and female students Female students 2.5 9 1.5 3.5 2.5 3 3 3 3 3 2.5 2.5 5 3.5 5 2 7 3 7 4 4 6.5 4 3 6 5 3 86 6 3 6 8 3 4 7 4 5 3.5 4 25 5 3 3 6 42 7 7 7 3.5 3 2.5 10 5 4 9 8 6 2 5 2.5 3 4.5 9 5 4 4 3 4 6 7 4 5 1 5 3 4 107 3 44 44 2 1 2.5 2.5 Male students 7 7.5 8 15 3 4 1 5 11 4.5 6 4 10 16 4 8 5 9 7 7 3 5 6.5 1 12 4 Scroll Question Source: Moore, The Basic Practice of Statistics, se i publishe

Explanation / Answer

a) The 95% confidence interval : (3.843, 4.715)
Option (C)
Option (B)

b) The 95% confidence interval : (5.778, 7.259)
Option (D)
Option (A)

c)
Option (C)
Test Statistic T-Value = -5.19

P-Value = 0.000

Option (D) we have strong evidence that the claimed number of drinks is different for men and women

Option (C) The 95% confidence interval for comparison of the behaviour of women and men is (1.4, 3.1)

Option (B)

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