IASSC ICBB Exam - 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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Skye

4 months ago

E is a valid point, we need more data for solid conclusions.

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Stephanie

5 months ago

D? Really? That doesn't seem right at all.

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Sharmaine

5 months ago

C sounds right, but I'm surprised it only applies to normal data.

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Lavera

5 months ago

I think B is correct, not enough evidence for a difference.

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Paulina

5 months ago

A is true, the variances are different!

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Lyla

5 months ago

I vaguely remember something about needing enough data points for valid conclusions, so option E could be a possibility too.

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Sherman

6 months ago

I feel like the test requires normal distribution, so maybe option C is valid, but I'm not completely confident.

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Arthur

6 months ago

I think option A might be correct, but I also recall a practice question where the conclusion was that the variances were not significantly different.

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Josephine

6 months ago

I remember the F-test is used to compare variances, but I'm not sure if it indicates significant differences or not.

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Brittni

6 months ago

This seems straightforward. Based on the F-test results, I believe option A is the valid conclusion.

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Jody

6 months ago

I'm a bit confused by the options here. I'll need to re-read the question and the information about the test to make sure I understand it correctly.

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Sherly

6 months ago

Okay, I'm pretty confident I can handle this. The key is to focus on the assumptions and limitations of the variance F-test.

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Kerry

6 months ago

I think I know how to approach this, but I want to double-check the details on the variance F-test before answering.

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Fallon

6 months ago

Hmm, this looks tricky. I'll need to carefully review the information provided and think through the statistical implications.

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Reynalda

6 months ago

Hmm, not sure about this one. I'll need to think through the different integration options and consider which one would be the best initial step.

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Yvonne

6 months ago

Ah, I recognize this methodology. It's definitely the PTES technical guidelines. I'm confident that option B is the correct answer.

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Leigha

6 months ago

I think the answer is C. DNS Security Extensions can help prevent domain hijacking and man-in-the-middle attacks by verifying the authenticity of DNS responses.

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Gilma

11 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

10 months ago

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

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Yolando

10 months ago

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

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Jamal

10 months ago

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

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Alayna

11 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

10 months ago

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

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Tom

10 months ago

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

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Denise

11 months ago

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

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Merilyn

11 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

10 months ago

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

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Kristeen

10 months ago

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

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Rebecka

10 months ago

User 1: I think C is the correct conclusion.

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Derrick

12 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

10 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

11 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

11 months ago

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

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Diego

11 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

1 year 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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