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....

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 differs from 5 inches? Let u1 represent the mean height at age 14 and ud= u1-u2. Use the a=0.01 level and the p-value method with the TI-84 calculator.