Posted by **Student** on Tuesday, August 12, 2008 at 3:00pm.

testing for the differences between means of 2 independent populations where the variances in each population r unknown, u must first perform the F-test for the difference between 2 variances. Which of the following is correct? a)If the null hypothesis of the F-test is rejected, then use the pooled variance t test for the difference between the means. b)If the null hypothesis of the F-test is not rejected, then use the separate variance t test for the difference between the means. c) If the alternative hypothesis of the F-test is accepted, then use the pooled variance t test for the difference between the means. d)Both (a)n(c)are correct. e)None

- Statistics -
**MathGuru**, Tuesday, August 12, 2008 at 10:10pm
You may want to check this, but I would lean towards d) because a) and c) are saying the same thing. If the null is rejected, then the alternative would be accepted. Usually when doing an F-test and the null is rejected, it is often necessary to do additional analysis to test for difference between means.

## Answer This Question

## Related Questions

- statistics - 1)Please Help In testing whether the means of two normal ...
- Stats - If we are testing for the difference between the means of 2 independent ...
- bus stats - Given the following information about a hypothesis test of the ...
- statistics - if we are testing for the difference between two populations, it is...
- business statistics - For the following independent random samples, use the z-...
- Statistics - Data below corresponds to sample weights of two different types (A ...
- statistic - . For each of the following, assume that the two samples are ...
- Statistics - How do you differentiate between equal and unequal variances when ...
- business stats - Given the following information about a hypothesis test of the ...
- Statistics - To do inferential procedures comparing two proportions, we need ...

More Related Questions