Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the night shit than on the day shift. The mean number of units produced by a sample of 68 day-shift workers was 352 . The mean number of units produced by a sample of 74 night-shift workers was 358 . Assume the population standard deviation of the number of units produced is 28 on the day shift and 35 on the night shift. Using the 0.05 significance level, is the number of units produced on the night shift larger? a. State the null and alternate hypotheses. Ho: DoyNight:H1:Day