Visual acuity of children. In a comparison of the visual acuity of deaf and hearing children, eye movement rates are taken on 10 deaf and 10 hearing children. The data are shown in the accompanying table. A clinical psychologist believes that deaf children have greater visual acuity than hearing children. (The larger a child’s eye movement rate, the more visual acuity the child possesses.)
EYFMOVE
Deaf Children | Hearing Children | ||
2.75 | 1.95 | 1.15 | 1.23 |
3.14 | 2.17 | 1.65 | 2.03 |
3.23 | 2.45 | 1.43 | 1.64 |
2.30 | 1.83 | 1.83 | 1.96 |
2.64 | 2.23 | 1.75 | 1.37 |
a. Use the Wilcoxon rank sum procedure to test the psychologist’s claim at α = .05.
b. Conduct the test by using the large-sample approximation for the Wilcoxon rank sum test. Compare the results with those found in part a.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.