Author Question: Which circumstance will call for the use of analysis of variance (ANOVA)? a. A researcher wishes ... (Read 77 times)

frankwu · **on:** Jul 8, 2018

Which circumstance will call for the use of analysis of variance (ANOVA)?

a. A researcher wishes to compare differences in means between four groups
b. A researcher wishes to compare the difference in variance between two groups
c. A researcher wishes to compare the difference in variance among four groups
d. A researcher wishes to compare the difference in correlation between two groups.

Question 2

Clinicians now can calculate a person's myocardial infarction risk by evaluating several known risk factors, such as cholesterol levels and diabetes. This is possible because of

a. bivariate correlation analysis
b. factor analysis.
c. multiple regression analysis.
d. simple linear regression analysis.