Q1.A random sample of n =25 from a normal population produced a sample variance equal to 21.4.Do these data provide sufficient evidence to indicate thatTest using= 0.05. (Critical value ofX²_.05= 36.4151)

Q2:If You're an analyst for the Light & Power Company and you want to compare the electricity consumption of single-family homes in two towns. You compute the following from a sample of homes

At the .05 level of significance, is there evidence of a difference in variances between the two towns at (0.05) level. (Critical-F = 2.41)

Town 1 Town 2 Sample size 25 21 Sample mean 85 68 Standard Deviation 30 18