Please show me how you got the answer!
The Maine Department of Natural Resources reported that the mean weight of lobsters trapped in the state is 1.7 pounds. Shelly is a lobster trapper off the coast of Maine. She suspects that this figure is too high so she records the weights of a random sample of 45 lobsters that she trapped. If x = 1.5 pounds and s = 0.6 pounds, use a 1 percent level of significance to test the state's figure of 1.7 pounds.
George and John wants to check the claim that convicted burglars spend an average of 20 months in jail. They have a random sample of 32 such cases taken from court files and find that = 18 months and s = 8.5 months. Test the null hypothesis that = 20 at the 0.05 significance level.