Boxes of cereal are labeled as containing 14 ounces. One consumer is concerned that the cereal boxes do not weigh 14 oz. and collects a random sample of 12 boxes. Following are the weights, in ounces....

Boxes of cereal are labeled as containing 14 ounces. One consumer is concerned that the cereal boxes do not weigh 14 oz. and collects a random sample of 12 boxes. Following are the weights, in ounces. Assume that the distribution for the weights for the population are approximately normal. 14.02 13.97 14.11 14.15 13.97 14.05 13.85 14.11 14.12 13.92 14.10 14.02 a. Use the Critical Value method of hypothesis testing to test if this claim is valid for a =0.10 ?