Finite Math, Looking for some assistance on this question. Thank you 

 

Finite Math 1533 Project 1
The Method of Least Squares
The method of least squares refers to a technique that is often used in data analysis to
determine the "best" linear equation that fits a given collection of experimental data. It is a
technique used by statisticians, economists, business forecasters, and those who try to
interpret and analyze data.
The general least squares problem consists in finding the best straight line fit to a given set of
data points:
If we
let then the line of best fit to the data points is y = mx + b, where X is found by solving the system
of two equations in two unknowns generated by Simplify each side to determine this system of equations, and then solve for m and b. A business would like to determine the relationship between the amount of money spent on
advertising and its total weekly sales. Over a period of ten weeks, it gathers the following
data:
Amount Spent on
Weekly Sales
Advertising (in
Volume (in
thousands)
thousands)
x
y
1
5
0
0
1
5
1
5
1
6
7
1
1
5
4
2
1
6
8
5
2
7
1
5
Determine the line of best fit for this data. Predict the sales from $25,000 spent on
advertising. Sketch a graph of the data points and the line of best fit.
2
6
0
5
1
6
9
2
2
7
2
7

steventrainor posted a question · Jun 25, 2016 at 9:09pm

View the entire interaction

Top Answer

 This is a preview. Unlock to view the full answer. 5Unlock Solution

Your answer is done.... Unlock the full answer

 ATTACHMENT PREVIEW Unlock and download attachment

reg.docx

Here,
A=
10 1 11
17
14
18 1
1
1
1 21
15
20 1
1
1 19
22 1
1 A^T=
10
1 11
1 X=
X
b
Y=
50
55
61
52
65
75
60
65
62
77
A^T.A.X=A^T.Y 17
1 14
1 18
1 21
1 15
1 20
1 19
1 22
1 => [ 2941 167
167 10...

ComputerScienceExpert

(11)

Status NEW Posted 22 Apr 2017 08:04 AM My Price 9.00

-----------

Attachments

file 1492849666-Solutions file 2.docx preview (51 words )

H-----------ell-----------o S-----------ir/-----------Mad-----------am ----------- Th-----------ank----------- yo-----------u f-----------or -----------you-----------r i-----------nte-----------res-----------t a-----------nd -----------buy-----------ing----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n. -----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be----------- qu-----------ick-----------ly -----------onl-----------ine----------- an-----------d g-----------ive----------- yo-----------u e-----------xac-----------t f-----------ile----------- an-----------d t-----------he -----------sam-----------e f-----------ile----------- is----------- al-----------so -----------sen-----------t t-----------o y-----------our----------- em-----------ail----------- th-----------at -----------is -----------reg-----------ist-----------ere-----------d o-----------n -----------THI-----------S W-----------EBS-----------ITE-----------. ----------- Th-----------ank----------- yo-----------u -----------

Not Rated(0)

• Buy Answer