Fine motor skills were measured in a sample of kindergarteners before and after 6 months of occupational therapy. Higher scores indicate stronger fine motor skills. The data are presented below. Is there evidence of a change in fine motor skills? Use a 5% level of significance. Make sure to 1. Give the null and alternative hypotheses, 2. Calculate the test statistic, and 3. give the conclusion (including a comparison to alpha or the critical value).
| 91 |
94 |
| 61 |
85 |
| 85 |
112 |
| 115 |
106 |
| 91 |
109 |
| 59 |
94 |
| 112 |
112 |