A large industrial customer complains to their electric supplier that the variance in voltage supplied to them exceeds the promised value of255

255. The electric supplier takes30

30voltage measurements at differing times of the day and finds a sample variance of244

244. Does the sample indicate that the population variance is less than255

255? State the critical value (CV), test statistic (TS), and decision from the test. (Use=0.10

=0.10.)