Question: 18. As the confidence interval increases, the significance level _____. a. Decreases b. Increases c. Stays the same 20. What does the median value of

18. As the confidence interval increases, the significance level _____.

a. Decreases

b. Increases

c. Stays the same

20. What does the median value of a survival curve mean?

a. The probability of time on surviving

b. How long it takes 50% of the sample to survive

c. The distribution of the population completing the study

d. The relative hazard corresponding to a unit change in the associated predictor.

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