ASQ Exam CQE Topic 10 Question 86 Discussion

Actual exam question for ASQ's CQE exam

Question #: 86
Topic #: 10

A two-way analysis of variance has r levels for one variable and c levels for the second variable with 2 observations per cell. The degree of freedom for interaction is

A2(r)(c)

B(r-1)(c-1)

Crc-1

D2(r-1)(c-1)

Show Suggested Answer

Suggested Answer: B

by Rosalind at Apr 27, 2024, 12:23 AM

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Ines

6 months ago

I guess it’s D then, makes sense given the cell counts.

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Rosita

6 months ago

Yeah, but option D, 2(r-1)(c-1), seems to account for the 2 observations per cell.

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Gary

6 months ago

Hmm, but I remember reading that the degrees of freedom for interaction isn't just about subtracting one.

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Mertie

6 months ago

I think the answer might be B, because (r-1)(c-1) feels right for interaction.

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Rosita

6 months ago

Totally, calculating degrees of freedom always confuses me.

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Ines

7 months ago

This question about two-way ANOVA looks tricky.

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