The average thickness of aluminum sheets is not 0.02 inches, as required. If you wish to test this claim, you would formulate the following null and alternative hypotheses: H0: ,u = 0.02 vs. H1: u at 0.02. 0 True 0 False A left-tailed test of hypothesis for a population mean with a significance level (or alpha level) equal to a = 0.05 will have a critical value z equal to -1.65. O True O False