You are given the same test scores (x) and weekly sales (y) data as in, Test Score (x) 1. 2. 3. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin 2 3 6 10 Weekly Sales (y)-in thou. of dollar $6 $12 $4 $8 $11 What is the regression equation that can be estimated from this data? (i.e., of the form y=a+bx where y' stands for predicted.) What is the standard error of the estimate? Construct 90% confidence intervals for the mean value of y given that x=4.
You are given the same test scores (x) and weekly sales (y) data as in, Test Score (x) 1. 2. 3. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin 2 3 6 10 Weekly Sales (y)-in thou. of dollar $6 $12 $4 $8 $11 What is the regression equation that can be estimated from this data? (i.e., of the form y=a+bx where y' stands for predicted.) What is the standard error of the estimate? Construct 90% confidence intervals for the mean value of y given that x=4.
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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Transcribed Image Text:Use the following data
Test score
8
6
Mr. Amber
Mr. Archer
Ms Smith
Mr. Malcolm
Mr. Goodwin
Ms. Bly
Ms.Rain
15
Use x=5 for Part III of the regression problem (prediction interval).
5
10
9
7
Weekly sales (in millions)
13
4
14
9
12
11
10
Transcribed Image Text:You are given the same test scores (x) and weekly sales (y) data as ind
Test Score (x)
1.
2.
3.
5.
Salesperson
Mr. Amber
Mr. Archer
Ms. Smith
Mr. Malcolm
Ms. Goodwin
2
3
6
10
Weekly Sales (y)-in thou. of dollars
$6
$12
$4
$8
$11
What is the regression equation that can be estimated from this data? (i.e., of the form
y=a+bx where y' stands for predicted.) What is the standard error of the estimate?
Construct 90% onfidence intervals for the mean value of y given that x=4.
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