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Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviations is within 1% of a. Is this sample size practical?

Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviations is within 1% of a. Is this sample size practical?

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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Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviations is within 1% of a. Is this sample size practical? To be 95% confident that s is within of the value of o, the sample size 19,205 768 192 48 n should be at least To be 99% confident that s is within 1% of the value of a, the sample size 33,218 1,336 336 In should be at least The minimum sample size needed is. Is this sample size practical? 1% 5% 10% 20% 30% 40% 50% 21 12 8 5% 10% 20% 30% 40% 50% 85 38 22 14 OA. Yes, because the sample size is small enough to be practical for most applications. OB. No, because the sample size is excessively large to be practical for most applications. OC. Yes, because the sample size should be as large as possible for most applications. O D. No, because the sample size should be as small as possible for most applications. [c
Transcribed Image Text:Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviations is within 1% of a. Is this sample size practical? To be 95% confident that s is within of the value of o, the sample size 19,205 768 192 48 n should be at least To be 99% confident that s is within 1% of the value of a, the sample size 33,218 1,336 336 In should be at least The minimum sample size needed is. Is this sample size practical? 1% 5% 10% 20% 30% 40% 50% 21 12 8 5% 10% 20% 30% 40% 50% 85 38 22 14 OA. Yes, because the sample size is small enough to be practical for most applications. OB. No, because the sample size is excessively large to be practical for most applications. OC. Yes, because the sample size should be as large as possible for most applications. O D. No, because the sample size should be as small as possible for most applications. [c
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