PEARSON Chapter 8 Quiz: Analysis of Variance Question 11 of 14 Worth 1 Point A r

Question

PEARSON Chapter 8 Quiz: Analysis of Variance Question 11 of 14 Worth 1 Point A researchers studying the effectsof three drugs (A B, and ?} on blood cholesterol, in three dnerent age groups. Which of the folowing is an example of an interaction effect? Dnug C lowers blood cholesterol by the greatest amount in all groups, while Drug B has no eftlect and Drug A minimal efect The youngest age group has the greatest ierence in blood cholestenol at the start of the study, and the lowest by the end of the study The oidest age group has the highest blood cholesterol at the start of the study but the lowest blood cholesterol by the end Drug 8 lowers blood cholesterol more than Drug A in the youngest age goup, but they have equal effect on the olidest age group 1 attempt remaining 5 0

Explanation / Answer

Solution:-

8) The oldest age group has highest blood cholestrol at the start of the study but lowest blood cholestrol at the end of the study.

9) DFA = 2, DFB = 3, DFAB = 6

DFA = a - 1

DFA = 3 - 1

DFA = 2

DFB = b - 1

DFB = 3

DFAB = (a - 1)(b - 1)

DFAB = 6

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