Question
One group of accounting students used simulation programs, while another group received a tutorial. Scores on an exam were compared. Statistic Simulation Tutorial Mean score
One group of accounting students used simulation programs, while another group received a tutorial. Scores on an exam were compared.
| Statistic | Simulation | Tutorial |
|---|---|---|
| Mean score | x1x1 = 8.5 | x2x2 = 10.6 |
| Sample standard deviation | s1 = 2.6 | s2 = 2.5 |
| Number of students | n1 = 25 | n2 = 25 |
a. Construct a 95 percent confidence interval for the true difference in mean scores. (Round your answers to 2 decimal places. Negative values should be indicated by a minus sign.)
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Systems Analysis and Design
Authors: Shelly Cashman, Gary B. Shelly and Harry J. Rosenblatt
9th Edition
978-1133274056, 9780538481618, 1133274056, 538481617, 978-1133274636
