The following output from a two sample t test using Minita

The following output from a two - sample t - test using Minitab was obtained for a particular problem: Two - sample T for side_side Age_Group N Mean StDev SE Mean elderly 9 22.2 10.3 3.4 young 8 15.13 3.91 1.4 Difference = mu (elderly) - mu (young) Estimate for difference: 7.10 95% CI for difference: ( - 1.13, 15.32) T - Test of difference = 0 (vs not =): T - Value = 1.92 P - Value = 0.083 DF = 10 For which of the following levels of significance would you reject the null hypothesis?

A. 0.01

B. 0.05

C. 0.10

D. None of the above

Solution

we reject null if p-value = 0.083 is less than significance level

C. 0.10