# Population means

The null and alternative hypotheses are:

Ho:u1=u2

H1: u1=u2

A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. a random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. at the .10 significance level, is there a difference in the population means?

https://brainmass.com/statistics/hypothesis-testing/finding-population-means-83029

#### Solution Preview

A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. a random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the .10 significance ...

#### Solution Summary

This shows how to figure out if there is a difference in population means.