A sample of 15 financial executives in the pharmaceutical industry revealed the correlation between the amount of fat (in grams) an executive consumed the previous day and that executive’s cholesterol level; the correlation was 0.345.
a. Does the cholesterol level in blood seem to increase in those who consumed more fat?
b. How much of the variation in cholesterol level is accounted for by the number of fat grams consumed?
c. At the 0.05 significance level, is it reasonable to conclude there is a positive association between fat consumed and the cholesterol level? What is the p-value?