In order to see if employees worked too much: an internal study was done and it was found that the average hours of work for an employee was 42 hours. A recent random sample of ED workers was selected: and it was found that they worked an average of 38.8 hours last week with a sample standard deviation of \"10.1 hours. a. Using a = t]. 'l D. is there enough evidence from this sample to conclude that the average number of hours worked per week is different than 42 hours? b. Determine the precise p-value for this test using Excel. a. Determine the null hypothesis. H0: and the alternative hypothesis. H1. EEEE (Type integers or decimals. Do not round ji Determine the appropriate critical value. Select the correct choice below and ll in the answer pox within your choice. {Round to two decimal places as needed. Use a comnta to separate answers as needed} Determine the test statistic. RED (Round to two decimal places as needed.)