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21d
Problem

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Textbook Expert
Textbook ExpertVerified Tutor
21 Dec 2021

Given information

We are given the table

Step-by-step explanation

Step 1.
From part (c) we know the equation of the linear model according to the Least Squares Regression Line approach:
When the Income Rate is just plug in the linear function equation in order to estimate the ulcer rate:

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