doctor wants to estimate the mean HDL cholesterol of all 20–29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=11.2 based on earlier studies? Suppose the doctor would be contents with 90% confidence. How does the decrease in confidence affect the sample size required?
doctor wants to estimate the mean HDL cholesterol of all 20–29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=11.2 based on earlier studies? Suppose the doctor would be contents with 90% confidence. How does the decrease in confidence affect the sample size required?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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- A doctor wants to estimate the mean HDL cholesterol of all 20–29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=11.2 based on earlier studies? Suppose the doctor would be contents with 90% confidence. How does the decrease in confidence affect the sample size required?
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