Question 3 (5 points) An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of .0004. Suppose the sample variance for 30 parts turns out to be S = .0005. Use a a = .05 to test whether the population variance specification is being violate (use p value approach) Ho: 6 2 s .0004 Ha: 6 2 > .0004 Research hypothesis