Exhibit 11.23
The following questions use the data below.
A store wants to predict quarterly sales. The owner has collected 3 years of sales data and wants your help in analyzing the data. He wants to use a quadratic trend model to forecast sales. 
-Refer to Exhibit 11.23. Based on the regression output, what formulas should go in cells D3:F14?
Definitions:
Nephrotoxic
Substances or drugs that are harmful to the kidneys, potentially causing damage or dysfunction.
Diabetic Kidney Disease
A complication of diabetes where the disease damages the kidneys over time, affecting their ability to filter blood.
Hypertension
A chronic medical condition in which the blood pressure in the arteries is persistently elevated.
Drug Toxicity
Harmful effects caused by excessive or inappropriate use of medication and substances, leading to adverse health consequences.
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