Assume you have noted the following prices for books and the number of pages that each book contains. Book Pages (x) A B C D E F G 500 700 750 590 560 650 475 Price (y) $7.10 7.40 8.90 6.60 7.40 6.90 5.10

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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(c) Compute the correlation coefficient between the price and the number of pages. (Round your answer to four decimal places.)
Test to see if x and y are related using the t-test. Use α = 0.10.
State the null and alternative hypotheses. (Enter != for ‡ as needed.)
Ho:
H₂:
Find the value of the test statistic. (Round your answer to three decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value
=
What is your conclusion?
Do not reject Ho. We cannot conclude that the relationship between x and y is significant.
Reject Ho. We conclude that the relationship between x and y is significant.
Do not reject Ho. We conclude that the relationship between x and y is significant.
Reject Ho. We cannot conclude that the relationship between x and y is significant.
OO
Transcribed Image Text:(c) Compute the correlation coefficient between the price and the number of pages. (Round your answer to four decimal places.) Test to see if x and y are related using the t-test. Use α = 0.10. State the null and alternative hypotheses. (Enter != for ‡ as needed.) Ho: H₂: Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = What is your conclusion? Do not reject Ho. We cannot conclude that the relationship between x and y is significant. Reject Ho. We conclude that the relationship between x and y is significant. Do not reject Ho. We conclude that the relationship between x and y is significant. Reject Ho. We cannot conclude that the relationship between x and y is significant. OO
Assume you have noted the following prices for books and the number of pages that each book contains.
Book Pages (x)
ŷ
A
B
C
D
E
F
G
500
700
750
590
560
650
475
Price (y)
$7.10
7.40
8.90
6.60
7.40
6.90
5.10
(a) Develop a least squares estimated regression line. (Round your numerical values to five decimal places.)
(b) Compute the coefficient of determination. (Round your answer to four decimal places.)
Explain its meaning. (Give your answer as a percent. Round your answer to two decimal places.)
The value of the coefficient of determination tells us that
line.
% of the variability in --?--has been explained by the least squares
Transcribed Image Text:Assume you have noted the following prices for books and the number of pages that each book contains. Book Pages (x) ŷ A B C D E F G 500 700 750 590 560 650 475 Price (y) $7.10 7.40 8.90 6.60 7.40 6.90 5.10 (a) Develop a least squares estimated regression line. (Round your numerical values to five decimal places.) (b) Compute the coefficient of determination. (Round your answer to four decimal places.) Explain its meaning. (Give your answer as a percent. Round your answer to two decimal places.) The value of the coefficient of determination tells us that line. % of the variability in --?--has been explained by the least squares
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