Babies: A sample of 25 oneyearold girls had a mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights is normally distributed. A pediatrician claims that the standard deviation of the weights of oneyearoid girls is less than 4 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the or = 0.05 level of significance. Part1 of5 State the appropriate null and alternate hypotheses. H0 : 0 \"Choose one] I ||:| H1:G'{Chooseone) V ||i| This hypothesis test is a lrighttailed V l test. Part2 of5 Find the critical value. Round the answer to three decimal places. For a = 0.05, the critical value is I _l" X 63 Part 3 of 5 Compute the test statistic. Round the answer to three decimal places. 6.558 X Part 4 of 5 Determine whether to reject Ho. At the a = 0.05 level, do not reject the null hypothesis Ho. X 5 Part: 4 / 5 Part 5 of 5 State a conclusion. There (Choose one) v enough evidence to conclude that the population standard deviation of the weights of one-year-old X girls is less than 4 pounds. 5