Homework Answers
Margin of error = 4
s = 12
Corresponding to 90% confidence interval, the critical z score = 1.64
Margin of error = 
-> 4 = 1.645*12/√n
-> n = 24.35
Thus, the required sample size = 25
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Determine the sample size required to estimate the mean score on a standardized test within 4...
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An IQ test is designed so that the mean is 100 and the standard deviation is 13 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 90% confidence that the sample mean is within 4 IQ points of the true mean. Assume that σ=13 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...
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Question Help An IQ test is designed so that the mean is 100 and the standard...
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An IQ test is designed so that the mean is 100 and the standard deviation is...
An IQ test is designed so that the mean is 100 and the standard deviation is 12 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 99% confidence that the sample mean is within 4 IQ points of the true mean. Assume that a 12 and determine the required sample size using technology, Then determine if this is a reasonable sample size...
RIGHT CLICK ON THE IMAGE AND SELECT "OPEN IMAGE IN A NEW TAB"
FOR A LARGER CLEARER IMAGE.
Determine the sample size required to estimate the mean score on a standardized test within 2 points of the true mean with 95% confidence. Assume that s = 17 based on earlier studies. O A. 278 OB. 17 O C. 1 OD. 376
An IQ test is designed so that the mean is 100 and the standard deviation is 20 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 90% confidence that the sample mean is within 4 IQ points of the true mean. Assume that o = 20 and determine the required sample size using technology. Then determine if this is a reasonable sample...
This Questions Detene the required to mate the mean score on a standardized test 2 points of the true mean won condence Assume that stands on OC 210 OD 115 lectuanswer Honorlock Il app.honorlock.com is sharing your sc I
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An IQ test is designed so that the mean is 100 and the standard deviation is 12 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 99% confidence that the sample mean is within 4 IQ points of the true mean. Assume that a 12 and determine the required sample size using technology, Then determine if this is a reasonable sample size...
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