This question: 6 point(s) possible Submit test According to an economic organization, the weekly hours worked in manufacturing in a country was 42 hours in 2017. A recent random sample of 70 manufacturing workers in this country was selected, and it was found that they worked an average of 38.8 hours last week with a sample standard deviation of 10.7 hours. a. Using a = 0.05, is there enough evidence from this sample to conclude that the average number of manufacturing 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, Ho, and the alternative hypothesis, H1 . Ho (Type integers or decimals. Do not round.) Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice. Round to two decimal places as needed. Use a comma to separate answers as needed.) OA. ta/2= OB. - to= O C. to = Determine the test statistic. (Round to two decimal places as needed.) State the conclusion. Ho. There evidence to conclude that the average number of manufacturing hours worked per week in this country hours . (Type an integer or a decimal. Do not round.) b. The p-value is. (Round to three decimal places as needed.) Pc Time Remaining