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?
Since the sample sizes n1=330 and n2=310 are very large, we can approximate it to use z-test.
The z-statistic ...
This solution contains step-by-step calculations to determine the p-value during a pooled variance case. Brief explanations are provided.