Use the following to answer question: Seventy-six Starbucks food items were anal

Question

Use the following to answer question:

Seventy-six Starbucks food items were analyzed for the calorie and carbohydrate content. We used linear regression to explore the relationship between the number of calories and amount of carbohydrates (in grams) Starbucks food menu items contain. The estimated regression equation with carbohydrates as the response variable and the calories as the explanatory variable is ˆy = 8.94 + 0.11x, and summary statistics of the two variables is provided below.

variable    min    Q1 median Q3 max mean sd n missing

calories 80    300 350    420 500    338.8    105.4    77    0

carbohydrates    16    31    45 59 80    44.9    16.6 77    0

Based on the figures, which of the following statements is false? 100 200 300 400 500 100 200 300 400 500 -3 -2 1 0 2 Calories Calories Standardized Residuals a. There is a positive linear association between number of calories and amount of carbohy drates b. Because the residuals are approximately normally distributed we can conclude that all food menu items are independent. C. Non-constant variance is evident as the variability in the res?duals is increasing for increas- ng values of calories d. All statements are true.

Explanation / Answer

Therefore all statements are true here.

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