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.

= 76.3 $1=18.4 ni = 16 = 61.5 s2 = 18.7 n2-20

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.

= 76.3 $1=18.4 ni = 16 = 61.5 s2 = 18.7 n2-20 112 =

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