Calculate the difference between the Daughters' and Mothers' Shoe sizes data given below.
| Family |
Daughter |
Mother |
| 1 |
8.0 |
7.0 |
| 2 |
8.0 |
7.0 |
| 3 |
7.5 |
7.5 |
| 4 |
8.0 |
8.0 |
| 5 |
9.0 |
8.5 |
| 6 |
9.0 |
8.5 |
| 7 |
8.5 |
7.5 |
| 8 |
9.0 |
7.5 |
| 9 |
9.0 |
6.0 |
| 10 |
8.0 |
8.0 |
| 11 |
7.0 |
7.0 |
| 12 |
8.0 |
7.0 |
1. Calculate the standard deviation for the difference
2. Find the value of t.
3. The p-value is