CFA Institute Exam CFA-Level-I Topic 3 Question 14 Discussion

Actual exam question for CFA Institute's CFA-Level-I exam

Question #: 14
Topic #: 3

A sample of size 600 is drawn from a population. The sample mean equals 329. The total width of the 99% confidence interval for the population mean is 893. The estimated population variance equals ________.

A6.7

B4.9

C6.3

D7.3

Show Suggested Answer

Suggested Answer: D

by Cathern at Mar 19, 2025, 06:11 AM

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Armando

30 days ago

I wonder if the population is as confused as I am right now. Time to channel my inner math genius!

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Colton

2 days ago

The estimated population variance is 1789.

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Rashad

13 days ago

I think we can use the formula for confidence interval to solve this.

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Francoise

1 months ago

This question is like a riddle wrapped in an enigma. Time to unleash my inner Sherlock Holmes!

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Aleisha

7 days ago

The estimated population variance is 1789. Can you confirm?

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Mira

26 days ago

Let's use the formula for confidence interval to solve this mystery.

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Denae

1 months ago

Wait, what's the formula for population variance again? *frantically flips through notes*

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Letha

1 months ago

Okay, let's see... Confidence interval, sample size, and sample mean. I got this!

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Tresa

16 days ago

So, the estimated population variance is 1786. Got it.

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Whitney

18 days ago

Sample mean equals 329, total width of 99% confidence interval is 893. Estimated population variance equals 1786.

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Tamesha

1 months ago

Hmm, this looks like a tricky one. Time to put on my thinking cap and crunch some numbers!

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Mona

2 months ago

Well, I used the formula for confidence interval width and got 1786, so I'm sticking with that.

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Xochitl

2 months ago

I disagree, I calculated it to be 4465.

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Mona

2 months ago

I think the estimated population variance is 1786.

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