Answer Happy

Big babies: The National Health Statistics Reports described a study in which a sample of 325 one-year-old baby boys were weighed. Their mean welght was 24.9 pounds with standard deviation 5.3 pounds. A pediatrician claims that the mean weight of one-year-old boys is less than 25 pounds. Do the data provide convincing evidence that te pediatrician's claim is true? Use the a 0.10 level of significance and the P-value method with the TI-84 Plus calculator, Part: 0/5 Part 1 of 5 () state the appropriate null and alternate hypotheses. HD <D > H This hypothesis test is a left-tailed test. х 5

Question 7 of 8 (1 point) Question Attempt: 1 of 1 Part 2 of 5 (b) Compute the value of the test statistic. Round the answer to two decimal places. 1 = 1 a X 3 Part: 2/5 Part 3 of 5 (c) Compute the P-value. Round the answer to at least four decimal places. P-value 1 х 3

Question 7 of 8 point) Question Attempt: 1 of 1 Part 4 of 5 (d) Determine whether to reject H.. Reject the null hypothesis H. Х $ Part: 4/5 Part 5 of 5 (e) State a conclusion. There is enough evidence to conclude that the mean weight of one-year-old boys is less than 25 pounds, X