IITM BS Week 7 Practice Questions

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IITM BS Week 7 Practice Questions | Prasnya

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Q1Comprehension3 Marks3 Aug 2025

Passage

A researcher collects two independent random samples of size

100

each from the same population with mean

\mu

and variance

\sigma^2

. Let

\bar X_1

and

\bar X_2

be the sample means. It is given that

\operatorname{Var}(\bar X_1-\bar X_2)=72

. Based on the above data, answer the given subquestions.

Find the population standard deviation

\sigma

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3 Aug 2025

Statistics 2 · Week 7

Q1.Find the population standard deviation

\sigma

.@passage

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