document.write( "Question 187049This question is from textbook
\n" ); document.write( ": 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 (standard deviation symbol)= 9.8, find the sample mean which produced this p-value given that the sample of size n = 40 was randomly selected. \r
\n" ); document.write( "\n" ); document.write( "Can anyone help me with this one???? \n" ); document.write( "
Algebra.Com's Answer #140216 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
In testing the hypothesis,
\n" ); document.write( "Ho: µ ≥ 28.7 and Ha: µ < 28.7, using the p-value approach, a p-value of 0.0764 was obtained.
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\n" ); document.write( "Draw the picture with a left tail having area = 0.0764
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\n" ); document.write( "The corresponding z-value is z = -1.4297
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\n" ); document.write( "\n" ); document.write( "If (standard deviation symbol)= 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( "Use the formula 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 = 14.69
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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