I need Stats Practice Questions answered Practical Research Methods for Nonprofit and Public Administrators Arthurs: O'Sullivan, Elizabethann / Rassel, Gary / Taliaferro, Jocelyn DeVance Complete the
Chapter 10
7. Millman’s golfing group is terrific for a group of amateurs. Are they ready to turn pro? Here’s the data. (Hint: Remember that the lower the score [in golf], the better!
| Size | Average Score | Standard Deviation | |
| Milman’s Group | 82 | 2.6 | |
| The Pro’s | 500 | 71 | 3.1 |
Chapter 11
8. Here are the results of three experiments where the means of the two groups being compared are exactly the same but the standard deviation is quite different from experiment to experiment. Compute the effect size using Formula 11.6 and then discuss why this size changes as a function of the change in variability.
| Experiment 1 | Group 1 Mean | 78.6 | Effective Size |
| Group 2 Mean | 73.4 | ||
| Standard Deviation | 2.0 | ||
| Experiment 2 | Group 1 Mean | 78.6 | Effective Size |
| Group 2 Mean | 73.4 | ||
| Standard Deviation | 4.0 | ||
| Experiment 3 | Group 1 Mean | 78.6 | Effective Size |
| Group 2 Mean | 73.4 | ||
| Standard Deviation | 8.0 |
