Problem 3.

Dr. Seuss is a pediatrician who is interested in examining the correlation between height and weight. The following height and weight data were collected for 8 of his patients:

Patient #	Height (in feet)	Weight (in kilograms)
1	3.6	18.9
2	2.7	12.1
3	3.3	17.0
4	3.9	21.0
5	4.2	24.2
6	4.0	23.1
7	4.7	36.0
8	3.2	15.5

Based on the data above, is height correlated with weight? Please show your work AND interpret your answer. (Note: For work, you can just provide the values for all of your "sums".) (5 points)

Dr. Seuss believes that weight (in kilograms) is a ratio variable. However, he is interested in describing weight as an ordinal variable instead. How can Dr. Seuss make his weight variable ordinal? Briefly explain your answer. (2 points)

Because there could be errors when measuring patients' weights on scales, Dr. Seuss decided to check the reliability of his scale by measuring each patient's weight twice using the same scale. What type of reliability did Dr. Seuss use? Briefly explain your answer. (2 points)