The results of sampling independent populations:

Sample 1 from population 1

Mean: 80

Population Variance: 3

Same Size: 25

Sample 2 from Population 2

Mean: 81

Population Variance: 2

Sample Size: 50

Test H0: (Population1 mean - population 2 mean) 0 at x = .05. HA: (Population 1 mean - Population 2 mean) > 0.

A. Pvalue .9938, H0 not rejected; difference of means plausible.

B. Pvalue .0062, H0 rejected; difference of means > 0.

C. Pvalue .0124, H0 rejected; difference of means > 0.