12. A corporation sets its annual budget for a new plant on the assumption that the average weekly cost for repairs is to be F: 132130 . To see whether this claim is realistic, 1i} weekly repair cost gures are obtained from similar plants. The sample is assumed to be random and 5:: LEE\": and s = 11D. Does this sample indicate that 5 LEW at 2131.05 yields is not a good assumed value for the mean weekly cost of repairs? Use . Assume normality of weekly repair cost