A doctor wants to estimate the HDL cholesterol of all 20- to 29year-old females. How many subjects are needed to estimate the HDL cholesterol within

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A doctor wants to estimate the HDL cholesterol of all 20- to 29—year-old females. How many subjects are needed to estimate the HDL cholesterol within 4 points with 99% confidence assuming 5 =15.3?Suppose the drxztorwould be content with 90% confidence. How does the decrease in confidence afiect the sample size required? A 99% confidence level requires subjects.(Round up to the nearest whole number as needed.) A 90% confidence level requires subiecis.(Round up to the nearest whole number as needed.) How does the decrease in confidence affect the sample size required? 0 A. The sample size is the same for ali levels of confidence.0 B. The lower the mnfidenoe level the smaller the sample size.0 C. The lower the confidence level the larger the sample size.