document.write( "Question 1086946: Assume that a 90% confidence interval for the mean is 18.5 < u < 21.5. The null hypothesis is ho u =17 at a = .10 would\r
\n" ); document.write( "\n" ); document.write( "a. be rejected because 17.0 is less than 18.5.
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\n" ); document.write( "b. not be rejected because 17.0 is less than 21.5.
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\n" ); document.write( "c. not be rejected because 21.5 is more than 18.5.
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\n" ); document.write( "d. be rejected because 17.0 is not equal to 20.0.\r
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Algebra.Com's Answer #701204 by jim_thompson5910(35256) $\"\"$ $\"About$

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The parameter $\"mu+=+17\"$ is NOT in the confidence interval $\"18.5+%3C+mu+%3C+21.5\"$ . Because it's outside the confidence interval, we reject the null hypothesis (H0).\r
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\n" ); document.write( "\n" ); document.write( "Answer: a. be rejected because 17.0 is less than 18.5.
\n" ); document.write( "which essentially is another way of saying \"the parameter is outside the confidence interval\" \n" ); document.write( "

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