A large industrial customer complains to their electric supp

A large industrial customer complains to their electric supplier that the variance in...

A large industrial customer complains to their electric supplier that the variance in voltage supplied to them exceeds the promised value of 255. The electric supplier takes 30 voltage measurements at differing times of the day and finds a sample variance of 244. Does the sample indicate that the population variance is less than 255? State the critical value (CV), test statistic (TS), and decision from the test. (Use a = 0.10.) CV = -19.7677, TS = 27.749, fail to reject H0 CV = 14.2565, TS = 30.307, fail to reject H0 CV = 19.7677, TS = 27.749, fail to reject H0 CV = 39.0S75, TS = 30.307, fail to reject H0

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