A company was contemplating the installation of a extime schedule in which a worker schedules his or her work hours or compresses work weeks. The company estimates that it needs a minimum mean of 7 hours per day per assembly worker in order to operate effectively. Each of a random sample of 70 of the company's assemblers was asked to submit a tentative flextime schedule. If the mean number of hours per day for Monday was 6.6 hours and the standard deviation was 2.4 hours, do the data provide sufcient evidence to indicate that the mean number of hours worked per day on Mondays, for all of the company's assemblers, will be less than 7 hours? Test using a = 0.05. State the null and alternative hypotheses. O HD:_u= 7versus Ha: .u.> 7 Ho:_u= 7versus Ha: us: 7 O HD:_u= 7versus Ha: \":7 OHD:_u7 OHD:p7versusHa:p=7 a! Find the test statistic and rejection region. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.) rejection region 2 3 :I z