Question

Find the required linear model using​ least-squares regression. The table below gives the total sales​ (in...

Find the required linear model using​ least-squares regression.

The table below gives the total sales​ (in billions of​ dollars) for the aerospace industry.

Year

2006

2007

2008

2009

2010

2011

Total Sales

184.4184.4

186.7186.7

188.3188.3

189.5189.5

190.5190.5

191.3191.3

​(a) Find a linear model for the data with x=6 corresponding to the year 2006.

​(b) Assuming the trend​ continues, estimate the total sales for the year 2015.

​(a) The linear model for the data is

yequals=nothing xplus+nothing .

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

a)

a)

from above: y^ =1.35x+177.01

b)

predicted value =1.35*15+177.01=197.26

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