Test the Given Claim About the Means of Two Populations

Essay

Test the given claim about the means of two populations. Assume that two dependent samples
have been randomly selected from normally distributed populations. A test of abstract reasoning
is given to a random sample of students before and after they completed a formal logic course.
The results are given below. At the 0.05 significance level, test the claim that the mean score is
not affected by the course. Include your null and alternative hypotheses, the test statistic, P-value
or critical value(s), conclusion about the null hypothesis, and conclusion about the claim in your
answer. $$\begin{array} { l c c c c c c c c c c } \text { Before } & 74 & 83 & 75 & 88 & 84 & 63 & 93 & 84 & 91 & 77 \\\hline \text { After } & 73 & 77 & 70 & 77 & 74 & 67 & 95 & 83 & 84 & 75\end{array}$$