Bags of a certain brand of tortilla chips claim to have a net weight of 14 oz. net weights actually vary slightly from bag to bag. assume net weights are normally distributed. a representative of a co

Bags of a certain brand of tortilla chips claim to have a net weight of 14 oz. net weights actually vary slightly from bag to bag. assume net weights are normally distributed. a representative of a consumer advocate group wishes to see if there is any evidence that the mean net weight is less than advertised, and so she intends to test the hypotheses h0: μ = 14 versus ha: μ < 14. to do this, she selects 16 bags of tortilla chips of this brand at random and determines the net weight of each. she finds a sample mean of 13.88 oz with a standard deviation of s = 0.24 oz.