(a) A Wildlife Officer wants to estimate the mean weight of salmon caught on the Gambo River. She randomly selected 20 salmon caught on the river and found the sample mean to be 4.12 kg per fish with a sample standard deviation of 1.05 kg per fish. Construct a 90% confidence interval for the mean weight of salmon caught on the Gambo River. Assume the weight of salmon in the population is normally distributed.

(b)Use MegaStat to verify your answer to part (a) above. Place the proper information in the Confidence Intervals/Sample Size section. Submit your Output.