IASSC ICBB Exam - Topic 2 Question 78 Discussion

Actual exam question for IASSC's ICBB exam

Question #: 78
Topic #: 2

[All ICBB Questions]

Which statement is NOT correct about the Fitted Line Plot shown here?

AThe independent variable is the reactant

BIf the reactant was 6 units, with 95 % confidence we would expect a minimum yield of 100 units

CWith at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1

DA reactant value between 2 and 4 units yields around 20 to 40

EWhen the reactant increases, the expected yield would increase

Show Suggested Answer

Suggested Answer: A

by Louann at Sep 15, 2024, 09:12 PM

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Devorah

4 months ago

Totally agree, D makes sense with the range they gave!

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Kandis

4 months ago

I think B is misleading, not sure about that minimum yield.

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Solange

4 months ago

The independent variable is definitely the reactant.

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Shawnta

5 months ago

Wait, are we really expecting that yield at 1? Sounds off.

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Regenia

5 months ago

C seems right to me, less than 10 units sounds accurate.

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Sharita

5 months ago

D seems reasonable based on similar practice questions, but I wonder if the range is too broad.

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Gene

5 months ago

C sounds a bit off; I feel like we might expect more than 10 units of yield when the reactant is at 1.

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Nu

6 months ago

I'm not sure about B; I remember something about confidence intervals, but I can't recall the exact numbers.

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Shizue

6 months ago

I think the independent variable should be the reactant, so A seems correct to me.

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Wade

6 months ago

This is a good opportunity to apply my knowledge of linear regression and fitted line plots. I feel confident I can identify the incorrect statement.

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Ezekiel

6 months ago

Alright, I've got a strategy. I'll go through each answer choice and think about whether it accurately describes the relationship between the reactant and yield based on the fitted line plot.

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Jacqueline

6 months ago

I'm a bit confused by the 95% confidence interval mentioned in some of the answer choices. I'll need to make sure I understand how to interpret that correctly.

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Nadine

6 months ago

Okay, let's see. The independent variable is the reactant, and the dependent variable is the yield. I think I can use the information in the plot to evaluate each answer choice.

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Alva

7 months ago

Hmm, this looks like a tricky one. I'll need to carefully analyze the fitted line plot and the answer choices to determine which statement is not correct.

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Francine

12 months ago

Ah, the age-old debate: reactant vs. independent variable. I'm going to have to side with option A on this one. It's basic science, folks.

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Shala

11 months ago

Definitely, the reactant is the independent variable in the fitted line plot.

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Leonardo

11 months ago

I agree, the reactant is the independent variable in this case.

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Beckie

11 months ago

I think option A is correct. The independent variable is the reactant.

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Magnolia

12 months ago

Wait, did they just say 'reactant' instead of 'independent variable'? Clearly, the correct answer is A. These test writers need to go back to chemistry class.

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Joanna

12 months ago

This question is a real head-scratcher. I'm going to go with option E - it just makes sense that when the reactant increases, the expected yield would increase.

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