A quality-assurance inspector periodically examines the output of a machine to determine whether it is properly adjusted. When set properly, the machine produces nails having a mean length of 2.000 inches, with a standard deviation of 0.070 inches. For a sample of 35 nails, the mean length is 2.025 inches. If the null and alternative hypotheses can be formulated to conclude that the machine is adjusted properly. At 5%% level of significance, find the critical value (s).       (-1.43 , 1.43)     (-1.435 , 1.435)     -1.43     1.435

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