Yogurt. Consumer Reports tested 14 brands of vanilla yogurt and found the following numbers of calories per serving: a) Check the assumptions and conditions for inference. b) Create a 95% confidence...

Yogurt. Consumer Reports tested 14 brands of vanilla yogurt and found the following numbers of calories per serving:

a) Check the assumptions and conditions for inference.

b) Create a 95% confidence interval for the average calorie content of vanilla yogurt.

c) A diet guide claims that you will get 120 calories from a serving of vanilla yogurt. What does this evidence indicate? Use your confidence interval to test an appropriate hypothesis and state your conclusion.