A sample of 10 North Seattle College students produces an av- erage IQ of 95 with a sample standard deviation of 9. A sample of 12 South Seattle College students produces an average IQ of 93 with a sam- ple standard deviation of 13. Assuming the population variances are equal (and both populations are normally distributed), is there enough evidence at the 5% level to say that the population IQ's are different? Use the rejection region method.
A sample of 10 North Seattle College students produces an av- erage IQ of 95 with a sample standard deviation of 9. A sample of 12 South Seattle College students produces an average IQ of 93 with a sam- ple standard deviation of 13. Assuming the population variances are equal (and both populations are normally distributed), is there enough evidence at the 5% level to say that the population IQ's are different? Use the rejection region method.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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
Transcribed Image Text:A sample of 10 North Seattle College students produces an av-
erage IQ of 95 with a sample standard deviation of 9. A sample of 12
South Seattle College students produces an average IQ of 93 with a sam-
ple standard deviation of 13. Assuming the population variances are equal
(and both populations are normally distributed), is there enough evidence
at the 5% level to say that the population IQ's are different? Use the
rejection region method.
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