Age | Incident CVD | No CVD | Total |
< 50 | 45 | 555 | 600 |
50+ | 61 | 339 | 400 |
Total | 106 | 894 | 1000 |
Is age independent of incident CVD? Preform a chi-squared test of independence. Remember to document the 5 steps used in hypothesis testing. Why is age a confounding factor in this example?
Given data table in the this question is,
Age | Incident CVD | No CVD | Total |
< 50 | 45 | 555 | 600 |
50+ | 61 | 339 | 400 |
Total | 106 | 894 | 1000 |
The hypothesis is as:
Number of rows (r) = 2
Number of columns (c) = 2
Now, degre...
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