Public Health and Nutrition
Crimini mushrooms are more common than white mushrooms, and they contain a high amount of copper, which is an essential element according to the U.S. Food and Drug Administration. A study was conducted to determine whether the weight of a mushroom is linearly related to the amount of copper it contains. A random sample of crimini mushrooms was obtained, and the weight (in grams) and the total copper content (in mg) was measured for each.
a. Construct a scatter plot of the data.
b. Find the sample correlation coefficient.
c. Use your results in parts (a) and (b) to describe the relationship between crimini mushroom weight and copper content.
d. If a simple linear regression analysis were conducted, identify the independent and dependent variables that would be used.