Essentials of Statistics, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780321926739
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 10, Problem 5RE
To determine
To find: The regression equation with the durations of eruptions (x1) and interval-beforetime of eruptions (x2) as the predictor variables and the interval-after time of eruptions (y) as dependent variable.
To identify: The value of the multiple coefficient of determination
To find: The adjusted value of
To obtain: The P-value corresponding to the overall significance of the multiple regression equation.
To determine: Whether the regression equation can be used topredict the interval-after time with durations and interval-before time of eruptionsor not.
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9.2 Testing the Mean mu:
Problem 3
(1 point)
Test the claim that the population of sophomore college
students has a mean grade point average greater than 2.2.
Sample statistics include n = 71, x = 2.44, and s = 0.9.
Use a significance level of a = 0.01.
The test statistic is
The P-Value is between :
The final conclusion is
< P-value <
A. There is sufficient evidence to support the claim that
the mean grade point average is greater than 2.2.
○ B. There is not sufficient evidence to support the claim
that the mean grade point average is greater than 2.2.
Note: You can earn partial credit on this problem.
Note: You are in the Reduced Scoring Period. All work counts for
50% of the original.
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Chapter 10 Solutions
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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