Question: As part of a research program for a new cholesterol drug, Johnson Pharmaceuticals would like to investigate the linear relationship between the ages and LDL

As part of a research program for a new cholesterol drug, Johnson Pharmaceuticals would like to investigate the linear relationship between the ages and LDL (low density lipoprotein) cholesterol levels of men. The following data set shows the ages and LDL cholesterol levels of seven randomly selected men:

Age Cholesterol 23 37 26 32 Age Cholesterol 42 31 41 140

a. Construct a 95% confidence interval to estimate the average LDL cholesterol level of a 30 year old man.

b. Verify your results with PHStat.

Age Cholesterol 23 37 26 32 Age Cholesterol 42 31 41 140 160 144 210 155 195

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