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 1% of o. Is this sample size practical? To be 95% confident that s is 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size n should be at least To be 99% confident that s is 19,205 768 192 48 21 12 1% 5% 10% 20% 30% 40% 50% within of the value of o, the sample size In 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. Yes, because the sample size should be as large as possible for most applications. O B. Yes, because the sample size is small enough to be practical for most applications. OC. No, because the sample size should be as small as possible for most applications. -at 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 Tool Content uw be 99% confident that the sample standard deviation s is within 1% of o. Is this sample size practical? To be 95% confident that s is 10% 20% 30% 40% 50% 1% 5% within of the value of 6, the sample size 19.205 768 192 n should be at least 48 21 12 To be 99% confident that s is 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size 33.218 1.336 336 n should be at least 85 38 22 14 Is this sample size practical? O A. Yes, because the sample size should be as large as possible for most applications. B. Yes, because the sample size is small enough to be practical for most applications. O C. No, because the sample size should be as small as possible for most applications. O D. No, because the sample size is excessively large to be practical for most applications.

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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 deviation s is within 1% of o. Is this sample size practical?
To be 95% confident that s is
1%
5%
10% 20% 30% 40% 50%
within
of the value of 6, the sample size
n should be at least
To be 99% confident that s is
19,205 768
192
48
21
12
1%
5%
10% 20% 30% 40% 50%
within
of the value of o, the sample size
In 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. Yes, because the sample size should be as large as possible for most applications.
O B. Yes, because the sample size is small enough to be practical for most applications.
OC. No, because the sample size should be as small as possible for most applications.
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 1% of o. Is this sample size practical? To be 95% confident that s is 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size n should be at least To be 99% confident that s is 19,205 768 192 48 21 12 1% 5% 10% 20% 30% 40% 50% within of the value of o, the sample size In 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. Yes, because the sample size should be as large as possible for most applications. O B. Yes, because the sample size is small enough to be practical for most applications. OC. No, because the sample size should be as small as possible for most applications.
-at 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
Tool Content
uw be 99% confident that the sample standard deviation s is within 1% of o. Is this sample size practical?
To be 95% confident that s is
10% 20% 30% 40% 50%
1%
5%
within
of the value of 6, the sample size 19.205 768 192
n should be at least
48
21
12
To be 99% confident that s is
1%
5%
10% 20% 30% 40% 50%
within
of the value of 6, the sample size 33.218 1.336 336
n should be at least
85
38
22
14
Is this sample size practical?
O A. Yes, because the sample size should be as large as possible for most applications.
B. Yes, because the sample size is small enough to be practical for most applications.
O C. No, because the sample size should be as small as possible for most applications.
O D. No, because the sample size is excessively large to be practical for most applications.
Transcribed Image Text:-at 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 Tool Content uw be 99% confident that the sample standard deviation s is within 1% of o. Is this sample size practical? To be 95% confident that s is 10% 20% 30% 40% 50% 1% 5% within of the value of 6, the sample size 19.205 768 192 n should be at least 48 21 12 To be 99% confident that s is 1% 5% 10% 20% 30% 40% 50% within of the value of 6, the sample size 33.218 1.336 336 n should be at least 85 38 22 14 Is this sample size practical? O A. Yes, because the sample size should be as large as possible for most applications. B. Yes, because the sample size is small enough to be practical for most applications. O C. No, because the sample size should be as small as possible for most applications. O D. No, because the sample size is excessively large to be practical for most applications.
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