document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=881136>Question 881136</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Here are our Hypothesis: <BR>\n" );
document.write( "Ho: population mean &#956;o = 200 <BR>\n" );
document.write( "Ha: population mean &#956;o < 200 <BR>\n" );
document.write( "This will be Left-Tailed test. \r<BR>\n" );
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document.write( "Population Standard Deviation &#963; = 50 <BR>\n" );
document.write( "Significance level is 0.10 (10%). <BR>\n" );
document.write( "Critical z-value for 10% significance level is 1.28. \r<BR>\n" );
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document.write( "For sample mean x and sample size n use <BR>\n" );
document.write( "numbers assigned sample mean x is = 180 and sample size n= 16 \r<BR>\n" );
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document.write( "1. Calculate your test statistics z-value: z = (x - 200)/(50/&#8730;n) <BR>\n" );
document.write( "2. Does your sample statistics z value falls in rejection region to the left of -1.28? <BR>\n" );
document.write( "3. Will you reject or do not reject Ho? </SPAN>\n" );
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document.write( "x= 180 and sample size n= 16 <BR>\n" );
document.write( "z = (x - 200)/(50/&#8730;n) = (180 - 200)/(50/4)  = -20/12.5 = -1.6<BR>\n" );
document.write( "-1.6 < -1.28<BR>\n" );
document.write( "Reject Ho </SPAN>\n" );
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