document.write( "Question 187217: In testing the hypothesis, H0:µ ≥ 28.7 and Ha: µ < 28.7, using the p-value approach, a p-value of 0.0764 was obtained. If α = 9.8, find the sample mean which produced this p-value given that the sample of size n = 40 was randomly selected \n" ); document.write( "
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In testing the hypothesis, Ho:µ ≥ 28.7 and Ha: µ < 28.7, using the p-value approach, a p-value of 0.0764 was obtained. If α = 9.8, find the sample mean which produced this p-value given that the sample of size n = 40 was randomly selected
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\n" ); document.write( "The z-value that corresponds to the p-value of 0.0764 when there is a left-
\n" ); document.write( "tail test is z = -1.4297
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\n" ); document.write( "To find the sample mean use z = (x-u)/s
\n" ); document.write( "-1.4297 = (28.7-u)/9.8
\n" ); document.write( "28.7-u = -14.0112
\n" ); document.write( "u = 42.71
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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