A doctor wants to estimate the hdl cholesterol of all 20-to

Reference no: EM13618199

A doctor wants to estimate the HDL cholesterol of all 20-to 29- year-old females. How many sunjects are needed to estimate the HDL cholesterol within 2 point with 99% confidence assumming ?=16.4?

Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required?

A 99% confidences level requires ___subjects.

A 90% confidence level requires ---------- subjects.

(Round up to the nearest whole number as needed.)

Reference no: EM13618199

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