The company in question 76 further claims that only 2 % of the cups contain more than half the fat of regular yogurt. What is the probability of our seeing more than 12 cups out of 400 (which is what we saw in the report) that contain more than half the fat of regular yogurt?

Question 76

A natural food company is marketing a new yogurt that it advertises as having only half the fat of regular yogurt. The average amount of fat in a cup of regular yogurt is 1 unit. The Food and Drug Administration has asked us to investigate the product to see whether the company has engaged in false advertising. The test results are as follows:

What is the probability of our observing .52 units of average fat, as shown in the report if the population average fat is .5, as stated in the advertisement?

Transcribed Image Text:

Amount of yogurt tested Average amount of fat contained per cup Number of cups containing more than half the fat of regular yogurt Standard deviation of the amount of fat 400 cups 52 units 12 cups .2 units