Consider the following hypothesis test H0: µ1=µ2 Ha: µ1≠µ2 The following results are for two independent samples taken from the two populations.  Sample 1 Sample 2 n1 = 80 n2 = 70 sample 1 mean = 104 sample 2 mean = 106 s1 = 8.4 s2 = 7.6 a. What is the sampling variance for the sample 1 mean? Notice that I am asking for the sampling (not sample) value b. What is the sampling variance for the sample 2 mean?  c. What is the sampling standard deviation for the difference between the two sample means?

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