ssume that the sample is a simple random sample obtained froma normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size eeded to be 99% confident that the sample standard deviation s is within 50% of o. Is this sample size practical? To be 95% confident that s is within of the value of 6, the sample size n should be at least To be 99% confident that s is 1% 5% 10% 20% 30% 40% 50% 19.205 768 192 48 21 12 8 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size n should be at least 33,218 1,336 336 85 38 22 14 The minimum sample size needed is Is this sample size practical? O A. No, because the sample size should be as small as possible for most applications. O B. Yes, because the sample size is small enough to be practical for most applications. O C. Yes, because the sample size should be as large as possible for most applications. O R. No. because the sample size is excessivelv larae to be practical for most applications.
ssume that the sample is a simple random sample obtained froma normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size eeded to be 99% confident that the sample standard deviation s is within 50% of o. Is this sample size practical? To be 95% confident that s is within of the value of 6, the sample size n should be at least To be 99% confident that s is 1% 5% 10% 20% 30% 40% 50% 19.205 768 192 48 21 12 8 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size n should be at least 33,218 1,336 336 85 38 22 14 The minimum sample size needed is Is this sample size practical? O A. No, because the sample size should be as small as possible for most applications. O B. Yes, because the sample size is small enough to be practical for most applications. O C. Yes, because the sample size should be as large as possible for most applications. O R. No. because the sample size is excessivelv larae to be practical for most applications.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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 deviation s is within 50% of o. Is this sample size practical?
To be 95% confident that s is
within
of the value of 6, the sample size
n should be at least
To be 99% confident that s is
within
of the value of 6, the sample size
n should be at least
1%
5%
10% 20% 30% 40% 50%
19.205 768
192 48
21
12
8
1%
5% 10% 20% 30% 40% 50%
33,218 1,336 336
22
85
38
14
The minimum sample size needed is
Is this sample size practical?
O A. No, because the sample size should be as small as possible for most applications.
O B. Yes, because the sample size is small enough to be practical for most applications.
O C. Yes, because the sample size should be as large as possible for most applications.
O D. No. because the sample size is excessivelv large to be practical for most applications.
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