10.69 [EX10-069] MINITAB was used to complete a t-test of the difference between the two means using the following two independent samples.

Sample 1 33.7 21.6 32.1 38.2 33.2 35.9 34.1 39.8 23.5 21.2 23.3 18.9 30.3 Sample 2 28.0 59.9 22.3 43.3 43.6 24.1 6.9 14.1 30.2 3.1 13.9 19.7 16.6 13.8 62.1 28.1 Two-sample T for sample 1 vs sample 2 N Mean StDev SE Mean sample1 13 29.68 7.07 2.0 sample2 16 26.9 17.4 4.4 T-Test mu sample1  mu sample2 (vs not ): T0.59 P0.56 DF20

a. Assuming normality, verify the results (two sample means and standard deviations, and the calculated t) by calculating the values yourself.

b. Use Table 7 in Appendix B to verify the p-value based on the calculated df.

c. Find the p-value using the smaller number of degrees of freedom. Compare the two p-values.