Some students checked six bags of Doritos marked with a net weight of 28.3 grams. They carefully weighted the contents of each bag, recording the following weights (in grams): 29.2, 28.5, 28.7, 28.9, 29.1, 29.5. (a) Do these data satisfy the assumptions for inference? Explain. (b) Find the mean and standard deviation of the observed weights. (c) Create a 95% condence interval for the mean weight of such bags of chips. ((1) Explain in context what your interval means. (e) Comment on the company's stated net weight of 28.3 grams