Question

Cover Me, Inc. sells umbrellas in three cities. Management assumes that annual rainfall is the primary determinant of umbrella sales, and it wants to generate a linear regression equation to estimate potential sales in other cities. Given the data below, what is the estimated amount of sales for 96 inches of rain utilizing a linear regression equation? Round to nearest whole number.

Rainfall in X Sales in Dollars of Umbrellas
City A 35 2800
City B 30 2000
City C 12 800

Answer 1

7602.28

Step-by-step explanation:

Given the data:

Rainfall in X Sales in Dollars of Umbrellas

City A 35 2800

City B 30 2000

City C 12 800

Using the linear regression calculator :

The linear model obtained for the data is :

y = - 226.424 + 81.549x

Using the model, the predicted sales for 96 inches of rain will be:

X = 96

y = - 226.424 + 81.549(96)

The predicted sales is 7602.28