An IQ test is designed so that the mean is 100 and the standard deviation is 14 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics K students such that it can be said with 95% confidence that the sample mean is within 8 IQ points of the true mean. Assume that a 14 and determine the required sample size using technology Then determine if this is a reasonable sample size for a real world calculation. The required sample size is (Round up to the nearest integer.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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An IQ test is designed so that the mean is 100 and the standard deviation is 14 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics
students such that it can be said with 95% confidence that the sample mean is within 8 IQ points of the true mean. Assume that a 14 and determine the required sample size using technology.
Then determine if this is a reasonable sample size for a real world calculation.
The required sample size is. (Round up to the nearest integer.)
Transcribed Image Text:stion list uestion 3 Question 4 Question 5 Question 6 K An IQ test is designed so that the mean is 100 and the standard deviation is 14 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 8 IQ points of the true mean. Assume that a 14 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. The required sample size is. (Round up to the nearest integer.)
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