document.write( "Question 1170050: You are performing a left-tailed t - test with test statistic t = −0.56 and a sample of size 15, find the p-value to 4 decimal places. \n" ); document.write( "
Algebra.Com's Answer #794959 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
if the sample size is 15, then the degrees of freedom is 14.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "yout test statistic is therefore t = -.56 at 14 degrees of freedom.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "your best bet is to use a t-score calculator.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "this provides you with the p-value based on the degrees of freedom indicated.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "for example:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if it was a z-score of -.56, the p-value would have been .287739682.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if it was a t-score of -.56 at 50 degrees of freedom, the p-value would have been .2889899438.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if it was a t-score of -.56 at 14 degrees of freedom, the p-value would have been .2921646403.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "i used my ti-84 plus to provide these values.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "there are online calculators that will also do this for you.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the one i've used in the past is at https://stattrek.com/online-calculatorhttps://stattrek.com/online-calculator/t-distribution.aspx/t-distribution.aspx\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "here's a display of the results from using that calculator.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );