document.write( "Question 375517: An investigator chooses 5 rats random from the colony of rats maintained by the psychology department of the university. After special training to delay response, the reaction times in tenths of seconds to a signal were recorded and found to be “5, 3, 6, 4, 10”. Test the hypothesis that the mean reaction time for rats of this type is 4 tenths of a second.
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Algebra.Com's Answer #267057 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "*Note: Formula for the test statistic is \"t+=+%28x+-+mu%29%2F%28sigma%2Fsqrt%28n%29%29\"
\n" ); document.write( "In this case n = 5
\n" ); document.write( "Entering the Data into an Excel worksheet column and applying the Data Analysis tool
\n" ); document.write( "found \"mu+=+.38\" and \"sigma+=+.1923\" for this sampling.
\n" ); document.write( "\"t+=+%28.38+-.4%29%2F%28.1923%2Fsqrt%285%29%29\" = -.02/.086 = -.2326
\n" ); document.write( "P(t < -.2326) = .4080 Or 40.80%
\n" ); document.write( "The test results would show that this sampling is well within the average
\n" ); document.write( "of mu = .4sec \n" ); document.write( "
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