Question

12 men and 10 women are asked about how long it takes them to get ready in the morning. The men had an average of 20 minutes with a standard deviation of 5 minutes while the women had an average of 28 minutes with a standard deviation of 10 minutes. Suppose you want to test the stereotype that women take longer getting ready than mean with alpha = 0.05.

Q1 What is the alternative hypothesis in this scenario? (Men are sample 1 and women are sample 2)
Mu1 < Mu2
Mu2 ? Mu2
Mu1 > Mu2
Q2 What is the test statistic?
a. -1.093
b. 0.532
c. -2.438
Q3 What is the critical value(s)?
a. 1.96
b. -1.645
c. -1.725

Answer 1

Explanation:

as much as I think I know this I don't I just need the points