Party size bags of Tostitos are expected to weigh 50 ounces per bag. Test a sample of 60 with a sample mean of 51 and a population standard deviation of 8. With a level of significance of .05 are the...

Party size bags of Tostitos are expected to weigh 50 ounces per bag.  Test a sample of 60 with a sample mean of 51 and a population standard deviation of 8.  With a level of significance of .05 are the bags weighing more than 50 ounces?  (Ho: μ ≤ 50; Ha: μ > 50)