document.write( "Question 251649:  a hypothesis will test that two population means are equal. a sample of 10 with a standard deviation of 3 is selected from the first population and a smaple of 3 is selected from the first population. the standard deviations are not equal. testing the claim at the .01 level, what is the critical value? Assume unequal standard deviations\r
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document.write( "a. 2.845
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document.write( "b. 2.787
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document.write( "c. 2.807
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document.write( "d. 2.977
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| Algebra.Com's Answer #183408 by stanbon(75887)      You can put this solution on YOUR website! a hypothesis will test that two population means are equal. a sample of 10 with a standard deviation of 3 is selected from the first population and a sample of 3 is selected from the first population with standard deviation = 8. The standard deviations are not equal. \n" ); document.write( "Testing the claim at the .01 level, what is the critical value? \n" ); document.write( "Assume unequal standard deviations \n" ); document.write( "============ \n" ); document.write( "df = n1+n2-2 = 10+3-2 = 11 \n" ); document.write( "--- \n" ); document.write( "Critical value for 2-tail test, when df=11 and alpha = 1% \n" ); document.write( "= invT(0.995,11) = 3.1058 \n" ); document.write( "===================== \n" ); document.write( "That is not one of your listed answers but it is the \n" ); document.write( "critical value for your posted problem. \n" ); document.write( "--------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a. 2.845 \n" ); document.write( "b. 2.787 \n" ); document.write( "c. 2.807 \n" ); document.write( "d. 2.977\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |