Assume That the Heights of Female Executives Are Normally Distributed $$\sigma ^ { 2 } .$$

Multiple Choice

Assume that the heights of female executives are normally distributed. A random sample of 20 femaleexecutives have a mean height of 62.5 inches and a standard deviation of 1.8 inches. Construct a 98%confidence interval for the population variance, $$\sigma ^ { 2 } .$$

A) (1.7, 8.1)
B) (1.3, 2.8)
C) (0.9, 4.5)
D) (1.8, 8.5)