(d) Calculate the sample correlation and the sample covariance by hand for the first 8 observations of the two variables you use in the scatterplot. Show all of your work. (You can use a calculator for the algebra, but
(d) Calculate the sample correlation and the sample covariance by hand for the first 8 observations of the two variables you use in the scatterplot. Show all of your work. (You can use a calculator for the algebra, but
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:Data:
Sr. No.
1
2
Height
178
29
175
27
167
24
178
24
174
27
6
180
30.48
7
185
28
8
152
25
9
158
23
10
169.5
24.5
11
177
27
12
172
30
13
185
30
14
180.3
23
15
184
29.5
Scatter plot of height versus foot length:
345
Foot length

Transcribed Image Text:(d) Calculate the sample
correlation and the sample
covariance by hand for the first 8
observations of the two variables
you use in the scatterplot. Show
all of your work. (You can use a
calculator for the algebra, but
write out all of the equations.)
(e) Using a computer program,
calculate the regression line for
your scatterplot. Plot this line on
the scatterplot. (This is fairly
straightforward to do in excel,
and there are a number of
websites that will explain how to
do so.) You can also plot the line
on a hand-drawn scatterplot if
you prefer (though you will
probably need to use a computer
program to calculate the
equation).
(f) Briefly describe the
relationship between the two
variables. Reference the meaning
of the correlation, covariance,
scatterplot, and regression line.
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