Research shows that in the general population, 15% of people are classified as c

Question

Research shows that in the general population, 15% of people are classified as clinically depressed and 85% of people are not. If a researcher wants to test to see if people with divorced parents are significantly different than the population in regards to depression classification and goes about doing so by gathering a sample of 100 people with divorced parents and classifies them as either depressed or not depressed, which hypothesis test is appropriate for the study? Chi square test One-way ANOVA Related-samples t-test z-test

Explanation / Answer

Here we are testing whether people with divorced parents have different proportion of depressed as compared to general population so basically, we are testing for one proportion and hence,

We will use z - test here.

Option D is correct.

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