Please help answer the following questions for my statistics class. Thanks

QUESTION 6 A lumber mill is tested for consistency by measuring the variance ct board thickness. The target accuracy is a variance of 0.0035 muare inches or less. If 30 measurements are made and their variance is 0.006 square inchesI is there enough evidence to reject the claim that the standard deviation is within the limit at 0!. = .01? (Hint: lChi squre test ot a variance:- C' Yes, since the x2 test value 49.71 is greater than the critical value 49.588. "-" No, since the x2 test value 0.23 is less than the critical value 49.533. "-" Yes, since the )8 test value 49.71 is less than the critical value 50.892. "-" No. since the x2 test value 0.23 is less than the critical value 50.892. QUESTION 7 5 squirrels were found to have an average weight of 9.3 ounces with a sample standard deviation is 1.1. Find the 95% confidence interval of the true mean weight. {int Since the Eegulatiun standard deviation is unknown use t-diatribuonl Q ?.9