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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 2 points with 99% confidence assuming s= 11.6 based on earlier studies? Suppose the doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required? Click the icon to view a partial table of critical values. H A 99% confidence level requires 224 subjects. (Round up to the nearest subject.) A 95% confidence level requires subjects. (Round up to the nearest subject.)

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 2 points with 99% confidence assuming s= 11.6 based on earlier studies? Suppose the doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required? Click the icon to view a partial table of critical values. H A 99% confidence level requires 224 subjects. (Round up to the nearest subject.) A 95% confidence level requires subjects. (Round up to the nearest subject.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s= 11.6 based on earlier studies? Suppose the doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required? Click the icon to view a partial table of critical values. (...) A 99% confidence level requires 224 subjects. (Round up to the nearest subject.) A 95% confidence level requires subjects. (Round up to the nearest subject.) Clear all Check answer To see what to study nevt on to your Study Plan a hp 2 Pag
Transcribed Image Text: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 2 points with 99% confidence assuming s= 11.6 based on earlier studies? Suppose the doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required? Click the icon to view a partial table of critical values. (...) A 99% confidence level requires 224 subjects. (Round up to the nearest subject.) A 95% confidence level requires subjects. (Round up to the nearest subject.) Clear all Check answer To see what to study nevt on to your Study Plan a hp 2 Pag
es P quir quir Partial Critical Value Table Level of Confidence, (1-α) 100% ● 90% 95% 99% Our Study Plan Area in Each Tail, 0.05 0.025 0.005 Print C 2 Critical Value, Zα/2 1.645 1.96 2.575 Done DAVANCA ( Clear all
Transcribed Image Text:es P quir quir Partial Critical Value Table Level of Confidence, (1-α) 100% ● 90% 95% 99% Our Study Plan Area in Each Tail, 0.05 0.025 0.005 Print C 2 Critical Value, Zα/2 1.645 1.96 2.575 Done DAVANCA ( Clear all
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