Assume that the U.S. Mint manufactures dollar coins so that the standard deviation is 0.0390 g. The accompanying list contains weights (grams) of dollar coins manufactured with a new process designed to decrease the standard deviation so that it is less than 0.0390 g. This sample has these summary statistics: n = 16, x = 8.066 g, s = 0.02 g. A 0.05 significance level is used to test the claim that the sample is from a population with a standard deviation less than 0.0390 g. The null and alternative hypotheses are Ho=0.0390 g and H: