The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since1995.YearRetail Sales85.8513108.426141.7819169.25612202.29715222.266 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data isF(t) = 9.44t + 84.182.220210200190180170160150140130120110-10090391280Use the above scatter plot to decide whether the linear model fits the data well.O The function is not a good model for the dataO The function is a good model for the data.Estimate the retails sales in the U. S. in 2017.billions of dollars.Use the model to predict the year in which retails sales will be $232 billion.

In this case, year since 1995 is the independent variable and Retail Sales is the dependent…

Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t) = 9.44t + 84.182. %3D 220 210- 200 190 180 170- 160 150 140- 130 120 110 100- 90 12 804 Use the above scatter plot to decide whether the linear model fits the data well. O The function is not a good model for the data O The function is a good model for the data. Estimate the retails sales in the U. S. in 2017. billions of dollars. Use the model to predict the year in which retails sales will be $232 billion.

Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t) = 9.44t + 84.182. %3D 220 210- 200 190 180 170- 160 150 140- 130 120 110 100- 90 12 804 Use the above scatter plot to decide whether the linear model fits the data well. O The function is not a good model for the data O The function is a good model for the data. Estimate the retails sales in the U. S. in 2017. billions of dollars. Use the model to predict the year in which retails sales will be $232 billion.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

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Question

The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since
1995.
Year
Retail Sales
85.851
3
108.426
141.781
9
169.256
12
202.297
15
222.266

Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is
F(t) = 9.44t + 84.182.
220
210
200
190
180
170
160
150
140
130
120
110-
100
90
3
9
12
80
Use the above scatter plot to decide whether the linear model fits the data well.
O The function is not a good model for the data
O The function is a good model for the data.
Estimate the retails sales in the U. S. in 2017.
billions of dollars.
Use the model to predict the year in which retails sales will be $232 billion.

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