Consider the following data for two independent random samples taken from two normal populations.
|
Sample 1:
|
10
|
7
|
13
|
7
|
9
|
8
|
|
Sample 2:
|
8
|
7
|
8
|
4
|
6
|
9
|
a. compute the two sample means.
b. compute the two standard deviations
c. what is the point estimate of the difference between the two population means?
d. what is the 90% confidence interval estimate of the difference between two population means.