Nurse Julie wants to estimate the size of the participants in her study.

But first she needs to define correctly the type of predictor variable and the type of outcome variables for her study. She has two groups (Zinc and Placebo) and she will report the outcome as the proportion of those who got sick with ILI in each group . Her expectations look like this:

Treatment Groups Sick Not Sick

Zinc 10% 90%

Placebo 15% 85%

Based on the information given in the example in Question 9, and with the help of Nurse Julie reasoning, select the correct combination of type of variables for the predictor and the outcome

Group of answer choices

predictor: continuous; outcome: dichotomous

predictor: dichotomous; outcome: dichotomous

predictor: dichotomous; outcome: continuous

predictor continuous; outcome: continuous

Question 11

Nurse Julie is ready to choose the statistic test that is appropriate to calculate the sample size.

Choose the correct test

Group of answer choices

t-test

Chi-Square test

correlation coefficient

p-test