What sample size is necessary if we want to We are trying to estimate the average score of students on the final for STAT develop a 99% CI on the mean to within +/- 3 points? Past studies have indicated that the standard deviation for this score was somewhere between 5 and 8 points. O n = 39 On=32 On=48 O n = 57 n = 55

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
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What sample size is necessary if we want to
We are trying to estimate the average score of students on the final for STA
develop a 99% CI on the mean to within +/- 3 points? Past studies have indicated that the standard deviation for this score
was somewhere between 5 and 8 points.
On = 39
On=32
On=48
O n = 57
n = 55
Transcribed Image Text:What sample size is necessary if we want to We are trying to estimate the average score of students on the final for STA develop a 99% CI on the mean to within +/- 3 points? Past studies have indicated that the standard deviation for this score was somewhere between 5 and 8 points. On = 39 On=32 On=48 O n = 57 n = 55
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