The mean brain volume for a group of healthy adults is

Reference no: EM13642574

The mean brain volume for a group of healthy adults is collected and the mean brain volume of adults diagnosed with obsessive-compulsive behavior is also obtained. The results are listed below. Test the claim that there is a difference between the two population means. Use a 0.01 significance level.

Control Group: n = 10 xbar = 0.45 s = 0.08

Obsessive-compulsive patients: n = 10 xbar = 0.34 s = 0.08

According to book, CI is -.01< u1-u2< .23

Please show how the above answer is reached, I have tried several ways and can't get those numbers.

Reference no: EM13642574

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