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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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I need F please

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Part F only

The average daily cost of living in dollars (x) and the average wage in dollars (y) in 12 regions of a country are shown in the following
table
82 85 85 80
90 106 64 90 69 90
111
y 133 149 132 158 159 199 137 159 150 159 158 175
X
Assume that the averages are jointly normally distributed. Use the z-values rounded to two decimal places to obtain the answers.
(a) Find a regression line relating the wage to the cost of living.
Round your answer to one decimal place (eg. 98.7)
Pa= 71.8
Round your answer to two decimal places (eg. 98.76).
A₁ = 0.98
(b) Test for the significance of regression using a = 0.01.
hypothesis that , = 0
Reject
(c) Estimate the correlation coefficient.
Round your answer to three decimal places (e.g. 98.765).
P=
0715
(d) Test the hypothesis that p= 0, using a = 0.05.
Reject
hypothesis that p=0.
(e) Test the hypothesis that = 0.9, using a 0.01.
Fait to repect hypothesis that p=0.9,
(f) Construct a 95% confidence interval for the correlation coefficient.
Round your answers to three decimal places (eg. 98.765)
0.004
75
SPS
1655
B
Transcribed Image Text:The average daily cost of living in dollars (x) and the average wage in dollars (y) in 12 regions of a country are shown in the following table 82 85 85 80 90 106 64 90 69 90 111 y 133 149 132 158 159 199 137 159 150 159 158 175 X Assume that the averages are jointly normally distributed. Use the z-values rounded to two decimal places to obtain the answers. (a) Find a regression line relating the wage to the cost of living. Round your answer to one decimal place (eg. 98.7) Pa= 71.8 Round your answer to two decimal places (eg. 98.76). A₁ = 0.98 (b) Test for the significance of regression using a = 0.01. hypothesis that , = 0 Reject (c) Estimate the correlation coefficient. Round your answer to three decimal places (e.g. 98.765). P= 0715 (d) Test the hypothesis that p= 0, using a = 0.05. Reject hypothesis that p=0. (e) Test the hypothesis that = 0.9, using a 0.01. Fait to repect hypothesis that p=0.9, (f) Construct a 95% confidence interval for the correlation coefficient. Round your answers to three decimal places (eg. 98.765) 0.004 75 SPS 1655 B
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