IASSC Exam ICBB Topic 5 Question 72 Discussion

Actual exam question for IASSC's ICBB exam

Question #: 72
Topic #: 5

[All ICBB Questions]

From the variance F-test shown above, which of these conclusions is/are valid?

AThe variance between the class score distribution is significantly different

BThe variance between the class score distribution is not significantly different

CThis test applies only to Normal Distributed data at 99 % confidence

DThis test applies only to Non-normal Data at 99 % confidence

EThere are not enough data points to make any statistical conclusions

Show Suggested Answer

Suggested Answer: C

by Trina at Jul 17, 2024, 12:38 PM

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Gilma

3 months ago

I'm just gonna go with C and hope the test gods are feeling generous today. If not, I'll blame the variance or something. That's what all the cool statisticians do, right?

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Shelton

2 months ago

I agree, let's go with C and hope for the best!

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Yolando

2 months ago

I'm not so sure about C. Maybe we should consider the other options as well.

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Jamal

2 months ago

I think C is the right choice too. Let's trust in the variance!

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Alayna

3 months ago

Aw, snap! D is the way to go, my friends. There's no way we can make any conclusions with this measly data set. Clearly, the test designers are trying to trick us!

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Tabetha

2 months ago

C) The variance between the class score distribution is significantly different

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Tom

2 months ago

B) This test applies only to Normal Distributed data at 99 % confidence

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Denise

3 months ago

A) The variance between the class score distribution is not significantly different

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Merilyn

3 months ago

You know, I'm feeling a bit like a statistician today. I think I'll go with C, but I might just flip a coin if I'm feeling indecisive. That's how real statisticians do it, right?

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Skye

2 months ago

User 3: I'm not sure, maybe we should flip a coin to decide.

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Kristeen

2 months ago

User 2: I agree, the variance between the class score distribution is significantly different.

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Rebecka

2 months ago

User 1: I think C is the correct conclusion.

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Derrick

4 months ago

Hmm, I'm not sure about this one. The question mentions 'class score distribution', so doesn't that imply the data is normally distributed? I'd go with B, just to be safe.

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An

2 months ago

True, we should take that into account. Let's think about it a bit more before making a final choice.

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Glenn

3 months ago

That's a good point. Maybe we should consider the possibility of the data not being normally distributed before making a final decision.

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Fausto

3 months ago

But what if the data is not normally distributed? Would that affect the validity of the conclusions?

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Diego

3 months ago

I think you're right, the question does mention 'class score distribution'. B sounds like the safest option.

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Deandrea

4 months ago

Option C seems like the obvious choice here. The F-test is designed to compare variances, so if the test is significant, the variances must be different. Easy peasy!

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