b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? The scatter diagram indicates a v linear relationship between = speed of execution rating and y = overall satisfaction rating for electronic trades. c. Develop the least squares estimated regression equation. Satisfaction = Speed (to 3 decimals) d. Provide an interpretation for the slope of the estimated regression equation (to 3 decimals). The slope of the estimated regression line is approximately So, a one unit v in the speed of execution rating will increase the overall satisfaction rating by approxima points.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question
3.5
D.
+2.5
3.5
4.5
Speed of Execution
b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
The scatter diagram indicates a
v linear relationship between x = speed of execution rating and y = overall satisfaction rating for electronic trades.
c. Develop the least squares estimated regression equation.
Satisfaction =|
Speed (to 3 decimals)
d. Provide an interpretation for the slope of the estimated regression equation (to 3 decimals).
The slope of the estimated regression line is approximately
So, a one unit
v in the speed of execution rating will increase the overall satisfaction rating by approximately
points.
e. Suppose Zecco.com developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.3 to the
average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating?
(to 3 decimals)
Transcribed Image Text:3.5 D. +2.5 3.5 4.5 Speed of Execution b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? The scatter diagram indicates a v linear relationship between x = speed of execution rating and y = overall satisfaction rating for electronic trades. c. Develop the least squares estimated regression equation. Satisfaction =| Speed (to 3 decimals) d. Provide an interpretation for the slope of the estimated regression equation (to 3 decimals). The slope of the estimated regression line is approximately So, a one unit v in the speed of execution rating will increase the overall satisfaction rating by approximately points. e. Suppose Zecco.com developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of 2.3 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating? (to 3 decimals)
=2
fx
B
G
H
K
M
Use the area below to draw a scatter diagram.
Brokerage
2 Scottrade, Inc.
Charles Schwab
1
Speed
Satisfaction
Part a.
3.5
3.2
3
3.4
3.2
4 Fidelity Brokerage Services
5 TD Ameritrade
3.8
3.5
3.7
3.4
6
E*Trade Financial
2.8
3.2
7 Vanguard Brokerage Services
8 USAA Brokerage Services
Thinkorswim
10 Wells Fargo Investments
11 Interactive Brokers
2.7
3.7
3.4
36
9
25
2.6
2.3
2.6
3.9
4.0
12 Zecco.com
2.3
2.5
13
14
15
16
17
18
19
Formula
#N/A
20
Part c.
Slope
21
22
23
24
25
Intercept
EN/A
Part e.
Speed of Brokerage
Discussed
26
27
2.3
Average Speed of
Execution
28
29
#N/A
Estimation of the
Overall Satisfaction
30
31
Rating (to 3 decimals)
#N/A
Transcribed Image Text:=2 fx B G H K M Use the area below to draw a scatter diagram. Brokerage 2 Scottrade, Inc. Charles Schwab 1 Speed Satisfaction Part a. 3.5 3.2 3 3.4 3.2 4 Fidelity Brokerage Services 5 TD Ameritrade 3.8 3.5 3.7 3.4 6 E*Trade Financial 2.8 3.2 7 Vanguard Brokerage Services 8 USAA Brokerage Services Thinkorswim 10 Wells Fargo Investments 11 Interactive Brokers 2.7 3.7 3.4 36 9 25 2.6 2.3 2.6 3.9 4.0 12 Zecco.com 2.3 2.5 13 14 15 16 17 18 19 Formula #N/A 20 Part c. Slope 21 22 23 24 25 Intercept EN/A Part e. Speed of Brokerage Discussed 26 27 2.3 Average Speed of Execution 28 29 #N/A Estimation of the Overall Satisfaction 30 31 Rating (to 3 decimals) #N/A
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman