Question
4 (25 pts). Download the file GRE workshop file. The file shows the GRE scores of 40 participants before and after the workshop. The GRE
4 (25 pts).Download thefile "GRE workshop" file. The file shows the GRE scores of 40 participants before and after the workshop. The GRE workshop wants to know whether the workshop improves participants' GRE scores.
Use SPSS to do the following:
(a) Find the sample means and sample standard deviations before and after the workshop.
Paired Samples Statistics | |||||
Mean | N | Std. Deviation | Std. Error Mean | ||
Pair 1 | Before_workshop | 148.53 | 40 | 7.575 | 1.198 |
After_workshop | 152.57 | 40 | 6.288 | .994 |
(b) At
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Introduction to Probability
Authors: Mark Daniel Ward, Ellen Gundlach
1st edition
716771098, 978-1319060893, 1319060897, 978-0716771098
