The Percentage Rates of Home Ownership for 8 Randomly Selected $1.93 < \sigma ^ { 2 } < 39.48$

The percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with
99% confidence. Assume the variable is normally distributed.
64.7 76.2 68.9 75.0 61.8 69.9 71.5 67.3

A) $1.93 < \sigma ^ { 2 } < 39.48$
$1.39 < \sigma < 6.28$

B) $8.22 < \sigma ^ { 2 } < 168.62$
$2.87 < \sigma < 12.99$

C) $1.68 < \sigma ^ { 2 } < 34.55$
$1.30 < \sigma < 5.88$

D) $9.40 < \sigma ^ { 2 } < 192.71$
$3.07 < \sigma < 13.88$