Answer utilizing one or a combination of following Nonparametric Tests of Significance: one-way chi square test, two way chi square test, median test, Mann-Whitney U Test, Kruskal-Wallis One-Way Analysis of Variance by Ranks.
Cases of retinitis pigmentosa have been studied in 2 distinct populations: Swiss (110 individuals) and English (125) individuals. The genetic disease might be inherited in one of 3 ways: sex linked, recessive, and dominant. The survey found:
| |
English |
Swiss |
| Sex linked cases |
46 |
1 |
| Recessive cases |
25 |
99 |
| Dominant cases |
54 |
10 |
| Total |
125 |
110 |
Do these data show the significant association between ethnic origin and genetic type? Employ alpha of 1% and specify null and alternate hypotheses.