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P Value and Pooled Variance Case

The result ofa mathematical placement exam at Macy college for two campus is as follow

Campus Number Mean Standard Deviation
1 330 33 8
2 310 31 7

Assuming the pooled variance case, what is the P value?

Solution Preview

Since the sample sizes n1=330 and n2=310 are very large, we can approximate it to use z-test.

The z-statistic ...

Solution Summary

This solution contains step-by-step calculations to determine the p-value during a pooled variance case. Brief explanations are provided.