document.write( "Question 250898: 8. You are given the following data. Test the claim that there is a difference in the means of the two groups. Use a = 0.05.
\n" ); document.write( "Group A Group B
\n" ); document.write( " xbar1 = 10 xbar2 = 4
\n" ); document.write( " s1 = 15 s2 = 19
\n" ); document.write( " n1 = 89 n2 = 69
\n" ); document.write( "•State the null and alternate hypotheses
\n" ); document.write( "•Determine which test statistic applies, and calculate it
\n" ); document.write( "•Determine the critical value(s).
\n" ); document.write( "•State your decision: Should the null hypothesis be rejected?
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #182718 by stanbon(75887)\"\" \"About 
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You are given the following data. Test the claim that there is a difference in the means of the two groups. Use a = 0.05.
\n" ); document.write( "Group A Group B
\n" ); document.write( "xbar1 = 10 xbar2 = 4
\n" ); document.write( "s1 = 15 s2 = 19
\n" ); document.write( "n1 = 89 n2 = 69
\n" ); document.write( "•State the null and alternate hypotheses
\n" ); document.write( "Ho: u1-u2 = 0
\n" ); document.write( "H1: u1-u2 is not 0
\n" ); document.write( "--------------
\n" ); document.write( "•Determine which test statistic applies, and calculate it
\n" ); document.write( "I ran a 2-Sample Ttest and got the following:
\n" ); document.write( "ts: t = 2.1539
\n" ); document.write( "p-value: 0.0331
\n" ); document.write( "•Determine the critical value(s).
\n" ); document.write( "invT(0.025, df= 126.7287) = +/- 1.9789\r
\n" ); document.write( "\n" ); document.write( "•State your decision: Should the null hypothesis be rejected
\n" ); document.write( "Since the ts > 1.9789 reject Ho.
\n" ); document.write( "=======================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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