1. A group of data entry clerks had the following results in a keyboarding test: Speed (words/min) 44 65 55 28 45 71 50 #of errors 5 3 3 6 11 2 4 (a) (Communication ) Create a scatter plot and classify the lincar correlation, removing any outliers. (b) (Knowledge) Show the outlier in the graph by circling the point. (c) (Thinking )Fill out one of the tables below x y x-x y-y (x-x)² (-)²(x-x)(-) X= y = TOTALS: Alternative table (Check your formula sheet for appropriate formulas using the table below): X V 1² Σ= |Σ= ΙΣ= Σ= ΣΕ ΟΛΟΥ CET IN (d) (Thinking, Communication ) Calculate the regression equation y, given that a = - WR7 Σ(x-x)(-). Σ(x-x)²
1. A group of data entry clerks had the following results in a keyboarding test: Speed (words/min) 44 65 55 28 45 71 50 #of errors 5 3 3 6 11 2 4 (a) (Communication ) Create a scatter plot and classify the lincar correlation, removing any outliers. (b) (Knowledge) Show the outlier in the graph by circling the point. (c) (Thinking )Fill out one of the tables below x y x-x y-y (x-x)² (-)²(x-x)(-) X= y = TOTALS: Alternative table (Check your formula sheet for appropriate formulas using the table below): X V 1² Σ= |Σ= ΙΣ= Σ= ΣΕ ΟΛΟΥ CET IN (d) (Thinking, Communication ) Calculate the regression equation y, given that a = - WR7 Σ(x-x)(-). Σ(x-x)²
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:(e) (Thinking, Communication) Find the correlation coefficient r =
Σ(x-x)(y-y)
√(x-x)²Σ(v-²
(f) (Communication) What does your analysis tell you about the relationship between speed and accuracy
for this group of data entry clerks?
Transcribed Image Text:1. A group of data entry clerks had the following results in a keyboarding test:
Speed (words/min)
44
65
55
28
45
71
50
#of errors
5
3
3
6
11
2
4
(a) (Communication ) Create a scatter plot and classify the linear correlation, removing any outliers.
(b) (Knowledge) Show the outlier in the graph by circling the point.
(c) (Thinking )Fill out one of the tables below
x
y
x-x
y-y
(x-x)² (v-)²(x-x)(y-7)
x=
y =
PL
TOTALS:
Alternative table (Check your formula sheet for appropriate formulas using the table below):
y
y²
Σ=
Σ=
Σ=
C
(d) (Thinking, Communication ) Calculate the regression equation y, given that a = -
Σ(x-x)(y-D)
Σ(x-x)²
W3C7
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman