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

160 200 220 230 120 180 140

130 170 190 80 120 100 170

1. Use the R command qqnorm(x) where x is the data set to obtain the normal probability plot of the data set. Is it reasonable to assume the data set is normally distributed? Why or why not?
2. Regardless of the answer in part (a), assume the data set is normally distributed.
   Create a 99% confidence interval for the mean calorie content of vanilla yogurt.
3. A diet guide claims that you will get 120 calories from a serving of vanilla yogurt.
   What does the confidence interval in part (b) tell you about this claim? Why?
4. Use a computer software to answer the following question: Assuming the data set is

normally distributed. Is there evidence that the mean is different from the diet guide's

claim, which is stated in part (c)?

Price: $2.99

Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document