In a study conducted in Italy, 10 patients with hypertriglyceridemia were placed on a low-fat, high-carbohydrate diet. Before the start of the diet, cholesterol and triglyceride measurements were recorded for each subject.

Patient	Cholesterol Level (mmol/l)	Triglyceride level (mmol/l)
1	5.12	2.30
2	6.18	2.54
3	6.77	2.95
4	6.65	3.77
5	6.36	4.18
6	5.90	5.31
7	5.48	5.53
8	6.02	8.83
9	10.34	9.48
10	8.51	14.20

A)Construct a two-way scatter plot for these data.

Describe this plot.

B) Use Stata to calculate the Pearson Correlation Coefficient for these data

C)Test (alpha =0.05) whether or not the population correlation, , equals zero.

D) Use Stata to calculate the Spearman correlation coefficient.