Use the data in Exercise 22 in Section 13.1 for the following.

a. Compute a point estimate of the mean diastolic pressure for people whose systolic pressure is 120.

b. Construct a 95% confidence interval for the mean diastolic pressure for people whose systolic pressure is 120.

c. Predict the diastolic pressure of a particular person whose systolic pressure is 120.

d. Construct a 95% prediction interval for the diastolic pressure of a particular person whose systolic pressure is 120.

Exercise 22

A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters, for a sample of 16 adults. The following table presents the results.

Systolic Diastolic Systolic Diastolic 134 87 133 91 115 83 112 75 113 77 107 71 123 77 110 74 119 69 108 69 118 88 105 66 130 76 157 103 116 70 154 94