QUESTION 2 The IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an IQ test. What is the standard error for this sample? (Round to hundredth).

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The true population mean is not known.
QUESTION 2
The IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an 1Q test. What is the standard error for this sample?
(Round to hundredth).
QUESTION 3
The national IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an IQ test and the sample mean is 112. What is
the lower bound for this 90% confidence interval level for this sample? (Round to hundredth).
QUESTION 4
The national IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an IQ test and the sample mean is 112. What is
the upper bound for this 90% confidence interval level for this sample? (Round to hundredth).
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Transcribed Image Text:The true population mean is not known. QUESTION 2 The IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an 1Q test. What is the standard error for this sample? (Round to hundredth). QUESTION 3 The national IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an IQ test and the sample mean is 112. What is the lower bound for this 90% confidence interval level for this sample? (Round to hundredth). QUESTION 4 The national IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random sample of 150 students take an IQ test and the sample mean is 112. What is the upper bound for this 90% confidence interval level for this sample? (Round to hundredth). Save All Answers Click Save and Submit to save and submit, Click Save All Answers to save all answers. P Type here to search
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