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In: Math

2. Using your answers from question 1, determine the following confidence intervals for the population standard...

2. Using your answers from question 1, determine the following confidence intervals for the population standard deviation:

(a) 90%

(b) 95%

(c) 99%

QUESTION 1:

Question 1: 1. Consider the following sampled data: s 2 = 906.304, n = 31. Calculate the following confidence intervals for the population variance: (a) 90% (b) 95% (c) 99%

Solutions

Expert Solution

We are given,

The formula for population variance:

NOTE:- We need to look up at the chi-square table with a degree of freedom = 30 with their respective confidence level.

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NOTE:- Answers may be differed from answer to answer by some due to decimal rounding.

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milcah answered 1 year ago
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