Question 1
Independent random samples selected from two normal populations produced the following sample means and standard deviations.
1 = 7.1 | 2 = 8.4 |
Conduct the test
H0: (
μ1 -
μ2) = 0 against.
Ha: (
μ1 -
μ2) ≠ 0, Use α = .05.
Question 2
The screens below show the results of a test of
H0: (
μ1 -
μ2) = 0 against
Ha: (
μ1 -
μ2) ≠ 0

Comment on the validity of the results.