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SAS A00-240 Exam - Topic 7 Question 48 Discussion

Refer to the exhibit:The box plot was used to analyze daily sales data following three different ad campaigns.The business analyst concludes that one of the assumptions of ANOVA was violated.Which assumption has been violated and why?
D) Constant variance, because the interquartile ranges are different in different ad campaigns.
A) Normality, because Prob > F < .0001.
B) Normality, because the interquartile ranges are different in different ad campaigns.
C) Constant variance, because Prob > F < .0001.

SAS A00-240 Exam - Topic 7 Question 48 Discussion

Actual exam question for SAS's A00-240 exam
Question #: 48
Topic #: 7
[All A00-240 Questions]

Refer to the exhibit:

The box plot was used to analyze daily sales data following three different ad campaigns.

The business analyst concludes that one of the assumptions of ANOVA was violated.

Which assumption has been violated and why?

Show Suggested Answer Hide Answer
Suggested Answer: D

by Shonda at May 08, 2022, 09:20 PM

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Shawna
10 months ago
Normality violation makes sense, especially with those ranges!
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Luis
10 months ago
I think it’s definitely constant variance, but the Prob > F thing is confusing.
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Kayleigh
11 months ago
Wait, are we sure it's not normality? That seems off.
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Thea
11 months ago
Totally agree, the interquartile ranges are all over the place!
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Vallie
11 months ago
Looks like constant variance is the issue here.
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Miriam
11 months ago
I’m leaning towards option D because the differences in interquartile ranges seem significant, but I’m not completely confident in my choice.
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Emeline
11 months ago
I practiced a similar question where we had to identify assumptions based on box plots. I feel like normality is key, but I’m confused about the role of Prob > F.
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Curtis
11 months ago
I think the constant variance assumption might be violated if the interquartile ranges are different, but I can't recall the exact details.
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Dulce
11 months ago
I remember that ANOVA assumes normality, but I'm not sure how to tell if it's violated just from the box plot.
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Natalie
11 months ago
Easy peasy! The output will definitely be 2. The increment function modifies the original $val variable, so the change will be reflected in the final echo.
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Rex
12 months ago
I'm not entirely sure about this one. I'll need to review the differences between virtual and override methods to determine the best approach. Maybe I'll try to eliminate the options that don't seem quite right.
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