Question: One group of accounting students used simulation programs, while another group received a tutorial. Scores on an exam were compared. (a) Construct a 90 percent

One group of accounting students used simulation programs, while another group received a tutorial. Scores on an exam were compared.
(a) Construct a 90 percent confidence interval for the true difference in mean scores, explaining any assumptions that are necessary.
(b) Do you think the learning methods have significantly different results? Explain.

Statistic Simulation Tutorial Mean score Sample std. dev Number of students x' = 9.1 s, = 2.4 ni 20 10.3 s2 = 2.5 n 20

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