A doctor wants to estimate the 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=14.6 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

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.