Bundle: Introduction to Statistics and Data Analysis, 5th + WebAssign Printed Access Card: Peck/Olsen/Devore. 5th Edition, Single-Term
5th Edition
ISBN: 9781305620711
Author: Roxy Peck, Chris Olsen, Jay L. Devore
Publisher: Cengage Learning
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Chapter 14.2, Problem 30E
a.
To determine
Check whether there is a useful relationship between the response and the independent variables using the model utility test at the significance level 0.05.
b.
To determine
Calculate the values of
Interpret the values.
c.
To determine
Explain whether the regression model can be expected to give reasonably accurate predictions of the error percentage.
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An article used an estimated regression equation to describe the relationship between y = error percentage for subjects reading a four-digit liquid crystal display and the independent variables x1 = level of backlight, x2 = character subtense, x3 = viewing angle, and x4 = level of ambient light. From a table given in the article, SSRegr = 20.4, SSResid = 21, and n = 30.
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A regression model to predict Y, the state burglary rate per 100,000 people, used the following four state predictors: X1 = median age,
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Click here for the Excel Data File
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Predictor
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AgeMed
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Chapter 14 Solutions
Bundle: Introduction to Statistics and Data Analysis, 5th + WebAssign Printed Access Card: Peck/Olsen/Devore. 5th Edition, Single-Term
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