document.write( "Question 135396: Can someone tell me what this is about?\r
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document.write( "you are conducting a one tailed, right tail test using the z-test for means;
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document.write( ">> the level of significance is 0.025; question: what is the critical z-value???
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document.write( ">> the calculated z-value is 2.33; question: what is the p-value??
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document.write( ">> finally -- based on the above .. do we accept or reject the null hypothesis?? why or why not??\r
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Algebra.Com's Answer #99202 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Can someone tell me what this is about? \n" ); document.write( "you are conducting a one tailed, right tail test using the z-test for means;\r \n" ); document.write( "\n" ); document.write( ">> the level of significance is 0.025; question: what is the critical z-value??? \n" ); document.write( "It is the z-value which has on 2.5% of the data to the right. \n" ); document.write( "That z-value is z=1.96 \n" ); document.write( "---------------------------------\r \n" ); document.write( "\n" ); document.write( ">> the calculated z-value is 2.33; question: what is the p-value?? \n" ); document.write( "It is the percentage of the population that has a greater z-value. \n" ); document.write( "Answer: p-value = P(2.33 < z < 10) = 0.0099.. \n" ); document.write( "------------------------------------\r \n" ); document.write( "\n" ); document.write( ">> finally -- based on the above .. do we accept or reject the null hypothesis?? \n" ); document.write( "Ans: Reject Ho \n" ); document.write( "---------------- \n" ); document.write( " why or why not?? \n" ); document.write( "Less than 1% of the test statistic results could have given stronger \n" ); document.write( "evidence that Ho should be rejected. \n" ); document.write( "------------------ \n" ); document.write( "Another way to look at this is the following. \n" ); document.write( "If the hypothesized mean were really true the probability of getting \n" ); document.write( "the test results we received was less than 1%. Rather than say \"oh, \n" ); document.write( "well, those things happen\" we say, that hypothesized mean is wrong. \n" ); document.write( "========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |