A student who works in a blood lab tested 25 men (ages 18-24) for cholesterol levels and found the following values

Samples 1-9	164	192	194	203	228	230	235	242	248
Samples 10-18	252	261	268	272	278	286	289	297	305
Samples 19-25	310	326	328	335	338	345	400

The lab wishes to know information on the average cholesterol level for males between 18 and 24 years old.

1. (3 points) For review, calculate the five-number summary and the mean, by hand. You may double check your answer using MINITAB.
2. (3 points) Based on the mean and median, what shape is the data?
3. (3 points)Using Minitab, create a histogram of the data in Minitab to confirm your answer to part 2. Attach the graph and comment on your observations.
4. (3 points) What is the point estimate for the average cholesterol level for males between the ages of 18 and 24.
5. (3 point) Use MINITAB to find the sample standard deviation. Attach the MINITAB output.
6. (3 points) Find the interval estimate for the parameter of interest, using 99% confidence (show your calculations).
7. (2 points)Interpret the confidence interval found in part 6