Question: Consider the following hypothesis statement using = 0.05 and data from two independent samples. Assume the population variances are equal and the populations are

Consider the following hypothesis statement using α = 0.05 and data from two independent samples. Assume the population variances are equal and the populations are normally distributed.

-= 14.3 Si = 2.7 ni = 20 =12.8 s2 = 3.3

a. Calculate the appropriate test statistic and interpret the result.

b. Approximate the p value using Table 5 in Appendix A and interpret the results.

c. Determine the precise p value using Excel.

d. Verify your results using PHStat.

-= 14.3 Si = 2.7 ni = 20 =12.8 s2 = 3.3 n2 = 18

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