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SAS A00-240 Exam - Topic 10 Question 113 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 10 Question 113 Discussion

Actual exam question for SAS's A00-240 exam
Question #: 113
Topic #: 10
[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 Daron at Jul 04, 2025, 01:41 AM

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Carol
6 months ago
Prob > F < .0001 is a big red flag!
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Clay
6 months ago
Totally agree, the interquartile ranges are all over the place!
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Jade
6 months ago
Wait, how can we be sure it's normality?
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Owen
6 months ago
Definitely constant variance being violated, not normality.
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Kristeen
7 months ago
Looks like normality is the issue here.
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Julieta
7 months ago
I feel like the answer is D, constant variance, because of those different interquartile ranges. We practiced a similar question on this!
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Jina
7 months ago
I’m leaning towards normality being the issue, but I can't recall if Prob > F being low directly indicates that.
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Rodolfo
7 months ago
I think it might be constant variance since the interquartile ranges look different for the ad campaigns. That sounds familiar from our practice questions.
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Joaquin
7 months ago
I remember we discussed ANOVA assumptions in class, but I'm not sure which one is violated here.
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Paul
8 months ago
Based on the box plot, I can see the data is not symmetrical, so the normality assumption has likely been violated. The varying interquartile ranges across the ad campaigns also point to an issue with the constant variance assumption.
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Martina
8 months ago
Okay, let me think this through. The box plot indicates the data is not normally distributed, so that's probably the assumption that's been violated. The different interquartile ranges also suggest the constant variance assumption may be an issue.
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Venita
8 months ago
The question mentions that one of the ANOVA assumptions was violated, so I need to think about which one. The box plot shows the data is skewed, so the normality assumption seems like the most likely culprit here.
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Odelia
8 months ago
Hmm, the box plot shows the data is not normally distributed, so I think the normality assumption has been violated. The different interquartile ranges across the ad campaigns also suggest the constant variance assumption may not hold.
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Shad
10 months ago
I see, so it's likely that normality assumption is violated in this case.
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Bonita
10 months ago
Constant variance? Normality? These statistical terms sound like they're from a different planet! I'll just go with option D and hope for the best.
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Linn
9 months ago
That makes sense, let's go with option D then.
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Lindsey
9 months ago
I agree, the interquartile ranges are different in different ad campaigns.
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Delila
9 months ago
I think option D is the best choice.
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Raymon
10 months ago
That could also be a factor, but the probability value is a stronger indicator.
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Dortha
10 months ago
But what about the interquartile ranges being different?
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Shad
10 months ago
I agree with Raymon, the Prob > F is less than .0001.
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Johana
11 months ago
The Prob > F being less than 0.0001 is a dead giveaway that the normality assumption has been violated. Option A is the way to go, my friends.
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Asuncion
10 months ago
Yes, option A is the correct choice in this case.
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Jettie
10 months ago
I agree, the low Prob > F value indicates a violation of normality assumption.
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Raymon
11 months ago
I think the assumption of normality has been violated.
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Mitzie
11 months ago
Haha, these ANOVA assumptions are like a game of 'guess the right answer'! I'm going with option D, constant variance, because the box plots don't look very consistent across the campaigns.
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Bulah
11 months ago
The interquartile ranges are different in the box plots, so I think the assumption of constant variance has been violated. Option D seems to be the correct answer here.
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Hildegarde
10 months ago
Yes, that's why option D is the correct answer.
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Vesta
10 months ago
I agree, the different interquartile ranges indicate a violation of constant variance assumption.
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Julene
10 months ago
The box plot clearly shows the difference in interquartile ranges, making constant variance assumption invalid.
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Leonor
10 months ago
Yes, that's why option D is the correct answer.
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Leatha
11 months ago
I agree, the interquartile ranges being different indicate a violation of constant variance.
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