Question

a university president, believes that the mean number of hours per day all male students at the University use cell/mobile phones exceeds the mean number of hours per day all female students at the University use cell/mobile phones. To test the presidents belief, you analyze data from 29 male students enrolled in a asa111 this semester and 13 female students enrolled in asa111 this semester.

b. Assuming equal population variances and the level of significance equals 0.05, if the calculated value for the associated test statistic equals 1.8333 (where males are group 1), can you conclude the mean number of hours per day all male students at the University use cell/mobile phones exceeds the mean number of hours per day all female students at the University use cell/mobile phones?

Group of answer choices

a)No Students in asa111 use cell/mobile phones

b)No

c)Need More Data

d)Yes

Answer 1

The test statistic t = 1.8333

df = 29 + 13 - 2 = 40

At = 0.05, the critical value is t_{0.05, 40} = 1.684

Since the test statistic value is greater than the critical value (1.8333 > 1.684), so we should reject the nul hypothesis.

At 0.05 significance level, there is sufficient evidence to conclude that mean number of hours per day all male students at the university use cell/mobile phones exceeds the mean number of hours per day all female students at the university use cell/mobile phones.

option - d) Yes