MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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(d) Test the hypothesis that p = 0, using a = 0.1.
hypothesis that p = 0.
(e) Test the hypothesis that p = 0.6, using a = 0.01.
v hypothesis that p = 0.6.
(f) Construct a 99% confidence interval for the correlation coefficient.
Round your answers to three decimal places (e.g. 98.765).
i
<p<
i
expand button
Transcribed Image Text:(d) Test the hypothesis that p = 0, using a = 0.1. hypothesis that p = 0. (e) Test the hypothesis that p = 0.6, using a = 0.01. v hypothesis that p = 0.6. (f) Construct a 99% confidence interval for the correlation coefficient. Round your answers to three decimal places (e.g. 98.765). i <p< i
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
75
111
y 133 149 132 158 159 199 137 159 150 159 158 175
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 (e.g. 98.7).
Bo
i
Round your answer to two decimal places (e.g. 98.76).
i
(b) Test for the significance of regression using a = 0.05.
v hypothesis that B, = 0.
(c) Estimate the correlation coefficient.
Round your answer to three decimal places (e.g. 98.765).
r =
i
expand button
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 75 111 y 133 149 132 158 159 199 137 159 150 159 158 175 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 (e.g. 98.7). Bo i Round your answer to two decimal places (e.g. 98.76). i (b) Test for the significance of regression using a = 0.05. v hypothesis that B, = 0. (c) Estimate the correlation coefficient. Round your answer to three decimal places (e.g. 98.765). r = i
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