In an experiment to compare the tensile strengths of I = 5 different types of copper wire, J = 4 samples of each type were used. The between samples and within samples estimates of sigma2 were computed as MSTr = 2673.3 and MSE = 1094.2, respectively.
a) Use the F test at level 0.05 to test H0 : mu1 = mu2 = mu3 = mu4 = mu5 versus Ha : at least two mui 's are unequal.
b) What can be said about the P-value for the test?