1. A sample of six college wrestlers had an average weight of 276 pounds with a sample standard deviation of 12 pounds. Assume the weights of college wrestlers is approximately normally distributed. Using the five step method with = .10, test the claim that the true average weight of all college wrestlers is 265 pounds.

Another question: A researcher believes more than 30% of high school seniors have their own cars.In a sample of 75 high school seniors 20 had their own cars.At = 0.05, does this sample provide evidence that more than 30% of high school seniors who have their own car? Use the five step testing method.