document.write( "Question 821285: Given a sample size of 64, with sample mean 730 and sample standard deviation 80, we perform the following hypothesis test. \r
\n" ); document.write( "\n" ); document.write( "H0 :µ= 750
\n" ); document.write( "H1:µ< 750
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\n" ); document.write( "What is the conclusion of the test at the α= 0.05level? Explain your answer.
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Algebra.Com's Answer #493999 by stanbon(75887)\"\" \"About 
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Given a sample size of 64, with sample mean 730 and sample standard deviation 80, we perform the following hypothesis test.
\n" ); document.write( "H0 :µ= 750
\n" ); document.write( "H1:µ< 750
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\n" ); document.write( "z(730) = (730-750)/[80/sqrt(64)] = -20*8/80 = -2
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\n" ); document.write( "P-value = P(z < -2) = normalcdf(-100,-2) = 0.0228
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\n" ); document.write( "What is the conclusion of the test at the α= 0.05level? Explain your answer.
\n" ); document.write( "Since the p-value is less than 5%, reject Ho.
\n" ); document.write( "The test results do not support Ho.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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