Big babies: The National Health Statistics Reports described a study in which a sample of 332 one-yearold baby boys were weighed. Their mean weight was 25.5 pounds with standard deviation 5.3 pounds. A pediatrician claims that the mean weight of one-year-old boys differs from 25 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the u=0.01 level of signicance and the P-value method with the TI-84 Plus calculator. _ State the appropriate null and alternate hypotheses. HO'D E|l E|=l This hypothesis test is a (Choose one) V test. left-tailed rig httailed two-tailed Question 4 of 4 (1 point) I Attempt 1 of Unlimited | View question in a popup 8.3 Seclion Exercise 18 (In-value, calc: Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to determine '5?\" whether someone is a good credit risk. Scores range from 300 to 850, with a score of 720 or more indicating that a person is a very good credit risk. An economist wants to determine whether the mean FICO score is lower than the cutoff of 720. She finds that a random sample of 55 people had a mean FICO score of 685 with a standard [i=0 deviation of 80. Can the economist conclude that the mean FICO score is less than 720? Use the u=0.10 level of significance and the P-value method with the TI-84 Plus calculator: fix Part: 0 / 4 ,_. Ed Part 1 of 4 [u State the appropriate null and alternate hypotheses. Ho: [1 H1: [1 This hypothesis test is a (Choose one) V test. left-tailed right-tailed two-tailed Question 2 of 4 (1 point) | Attempt 1 of Unlimited | View question in a popup 8.3 Section Exercise 16 (p-value, calc) College tuition: The mean annual tuition and fees in the 2013-2014 academic year for a sample of 13 private colleges in California was $39,000 with a standard deviation of $7200. A dotplot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in California is greater than $35,000? Use the a= 0.10 level of significance and the P-value method with EO the TI-84 Plus calculator. Part: 0 / 4 Part 1 of 4 olo State the appropriate null and alternate hypotheses. Ho: 0 0=0 HE This hypothesis test is a (Choose one) test. X 5 left-tailed right-tailed two-tailed