document.write( "Question 141513: 1. The following information is available.
\n" ); document.write( "H0: µ = 50
\n" ); document.write( "H1: µ ≠ 50
\n" ); document.write( "The sample mean is 49, and the sample size is 36. The population standard deviation is 5. Use a 0.05 significance level.
\n" ); document.write( "Answer the questions:
\n" ); document.write( "(a) Is this a one- or two-tailed test? \r
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\n" ); document.write( "\n" ); document.write( "(b) What is the decision rule? \r
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\n" ); document.write( "\n" ); document.write( "(c) What is the value of the test statistic? \r
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\n" ); document.write( "\n" ); document.write( "(d) What is your conclusion (in plain English) regarding H0?
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Algebra.Com's Answer #103119 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
1. The following information is available.
\n" ); document.write( "H0: µ = 50
\n" ); document.write( "H1: µ ≠ 50
\n" ); document.write( "The sample mean is 49, and the sample size is 36. The population standard deviation is 5. Use a 0.05 significance level.
\n" ); document.write( "Answer the questions:
\n" ); document.write( "(a) Is this a one- or two-tailed test?
\n" ); document.write( "
\r\n" );
document.write( "This is a TWO-tailed test because of the \"≠\"\r\n" );
document.write( "(It is one-tailed when H1 has > or <\r\n" );
document.write( "

\n" ); document.write( "(b) What is the decision rule?
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\r\n" );
document.write( "We reject H0 if the test statistic is either greater \r\n" );
document.write( "than 1.96 or less than -1.96, for those are the z-values\r\n" );
document.write( "each of which has half the .05, or .025, of area beyond \r\n" );
document.write( "them. If the test statistic is between -1.96 and 1.96,\r\n" );
document.write( "we fail to reject H0.\r\n" );
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\n" ); document.write( "(c) What is the value of the test statistic?
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\r\n" );
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\n" ); document.write( "(d) What is your conclusion (in plain English) regarding H0?
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document.write( "We fail to reject H0 because -1.2 is between -1.96 and 1.96.\r\n" );
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document.write( "Edwin
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