In May the fill weights of 6-pound boxes of laundry soap had a mean of 6.13 pounds with a standard deviation of 0.095. The goal was to decrease the standard deviation. The company decided to adjust the filling machines and then test to see if the standard deviation has decreased or not. In June a random sample of size 20 yielded a mean of 6.10 pounds and a standard deviation of 0.065. a. Was the company successful? Conduct a test of hypothesis to answer this question and make sure to give all the required details of the test. b. Find the approximate p-value of your test