[See Solution] Reducing Errors in Grammar. A composition teacher wishes to see whether a new smartphone app will re- duce the number of grammatical errors
Question: Reducing Errors in Grammar. A composition teacher wishes to see whether a new smartphone app will re- duce the number of grammatical errors her students make when writing a two-page essay. She randomly selects six students, and the data are shown. At α = 0.025, can it be concluded that the number Of errors has been reduced?
| Student | Errors After | Errors Before |
| 1 | 9 | 12 |
| 2 | 6 | 9 |
| 3 | 1 | 0 |
| 4 | 3 | 5 |
| 5 | 2 | 4 |
| 6 | 3 | 3 |
Deliverable: Word Document 
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