# Confidence interval for variance

Assume that the heights of women are normally distributed. A random sample of 20 women have a mean height of 62.5 inches and a standard deviation of 1.3 inches. Construct a 98% confidence interval for the population variance, (lower case sigma)2.

a.(0.9,2.1)

b.(0.9,4.4)

c.(0.7,3.2)

d.(0.9,4.2)

https://brainmass.com/statistics/confidence-interval/confidence-interval-for-variance-158702

#### Solution Summary

This solution gives the step by step method for computing confidence interval for variance are given.

$2.19