A simple random sample of 15-year old boys from one city is…
A simple random sample of 15-year old boys from one city is obtained and their weights (in pounds) are listed below. Use a 0.01 significance level to test the claim that these sample weights come from a population with a mean equal to 147 lb. Assume that the standard deviation of the weights of all 15-year old boys in the city is known to be 16.7 lb. 146 140 160 151 134 189 157 144 175 127 164 What is the test statistic? z= (round to 2 decimal places) What is the p-value? p= What are the critical values? z=+/- (round to 3 decimal places) What is your conclusion about the claim? s = support the claim r = reject the claim f = fail to reject the claim n = not enough evidence to support the claim