document.write( "Question 1158229: Using a 5% level of significance and a sample size of 25, what is the critical value for a one-tailed hypothesis test?????????A. 1.708
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Algebra.Com's Answer #781131 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Since it's a one-tailed test the whole level of significance is contained in\r\n" );
document.write( "the one tail. [If it were two-tails, it would be split half and half between\r\n" );
document.write( "the two tails.]\r\n" );
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document.write( "On your TI-84\r\n" );
document.write( "press 2ND, VARS,\r\n" );
document.write( "highlight invT    <-- invT, not invZ because 25 is less than 30 \r\n" );
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document.write( "area:0.05\r\n" );
document.write( "df:24         <-- 1 less than n\r\n" );
document.write( "Paste\r\n" );
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document.write( "invT(0.05,24)     <-- what you should have on your screen\r\n" );
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document.write( "press ENTER\r\n" );
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document.write( "-1.710882023, which rounds to -1.711\r\n" );
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document.write( "The reason it's negative is because the calculator gives critical values for the\r\n" );
document.write( "left tail.  Since your choices are all positive, they want a right tail, so by\r\n" );
document.write( "symmetry, make it +1.711.\r\n" );
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document.write( "Edwin
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