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Group Disease No Disease Total Group 1 X 100 154 Group 2 6 20 26 Group 3 24 52 76 Total 84 172 256 The
Group | Disease | No Disease | Total |
Group 1 | X | 100 | 154 |
Group 2 | 6 | 20 | 26 |
Group 3 | 24 | 52 | 76 |
Total | 84 | 172 | 256 |
The p-value for the chi-squared test of independence is 0.467. Which of the following is the best interpretation of this p-value?
a. If the grouping variable is independent of the disease status, we would expect to see this imbalance of disease status or more extreme 46.7% of the time.
b. The probability of the null hypothesis being true is 0.467
c. We should reject the null hypothesis that the grouping variable is independent of the disease status
d. There is a 46.7% chance that disease status is dependent upon the grouping variable.
2.
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