Question

Question 9 of 10 (1 point) Attempt 1 of Unlimited View question in a popup 11.3 Section Exercise 13 (critical value, table) Growth spurt: It is generally known that boys grow at an unusually fast rate between the ages of about 12 and 14. Following are heights, in inches, of 10 boys, measured at age 12 and again at age 14. Can you conclude that the mean increase in height is greater than 5 inches? Let u, represent the mean height at age 14 and 4 d = 4y -42. Use the d = 0.10 level and the critical value method with the table. Height 68.3 Age 12 61.2 64.5 55.9 60.4 57.8 63.0 64.4 58.2 59.7 Age 14 66.4 69.2 62.0 65.7 62.8 73.6 67.7 69.2 64.6 66.1 Send data to Excel olo Part: 0/5 Part 1 of 5 (a) State the null and alternate hypotheses. H. Hi This hypothesis test is a (Choose one) v test.

Answer 1

sol. (a) The null and alternative hypothesis - Hoi Hd=5 2) Hi: Md y 5 ( Right - tailed (6) The critical value is - This is right - tailed test. dc0.10 n=lo ) dt=n-t 9 Right - taild critical value 1.383 Ago