-Please use the TI-84 calculator to find the answer and explain the steps on the calculator how you got the answer. Thanks!

A doctor wants to estimate the mean HDL cholesterol of all?20- to?29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 3 points with 99% confidence assuming s=14.8 based on earlier?studies? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required?

A?99% confidence level requires ____________ subjects. ?(Round up to the nearest?subject.)

9.241 Question Help V A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 3 points with 99% confidence assuming 3 = 14.8 based on earlier studies? Suppose the doctor would be content with 90% confidence. How does the decrease in condence affect the sample size required? 3 Click the icon to View a partial table of critical values. A 99% confidence level requires D subjects. (Round up to the nearest subject.)