Stats: Data and Models
5th Edition
ISBN: 9780135164013
Author: DeVeaux
Publisher: PEARSON CO
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Chapter 26, Problem 8E
a.
To determine
Identify the null and alternative hypotheses for the main effects.
b.
To determine
Find the number of degrees of freedom of each treatment sum of squares.
Find the number of degrees of freedom of error sum of squares.
c.
To determine
Explain why or why not the experimenter should consider fitting an interaction term.
d.
To determine
Find the number of degrees of freedom for interaction term, if an interaction term is fitted.
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Please conduct a step by step of these statistical tests on separate sheets of Microsoft Excel. If the calculations in Microsoft Excel are incorrect, the null and alternative hypotheses, as well as the conclusions drawn from them, will be meaningless and will not receive any points.
4. One-Way ANOVA: Analyze the customer satisfaction scores across four different product categories to determine if there is a significant difference in means.
(Hints: The null can be about maintaining status-quo or no difference among groups)
H0 =
H1=
Please conduct a step by step of these statistical tests on separate sheets of Microsoft Excel. If the calculations in Microsoft Excel are incorrect, the null and alternative hypotheses, as well as the conclusions drawn from them, will be meaningless and will not receive any points
2. Two-Sample T-Test: Compare the average sales revenue of two different regions to determine if there is a significant difference.
(Hints: The null can be about maintaining status-quo or no difference among groups; if alternative hypothesis is non-directional use the two-tailed p-value from excel file to make a decision about rejecting or not rejecting null)
H0 =
H1=
Chapter 26 Solutions
Stats: Data and Models
Ch. 26.3 - The student conducting the paper airplane...Ch. 26.3 - Prob. 2JCCh. 26.3 - Prob. 3JCCh. 26.3 - Prob. 4JCCh. 26.3 - Prob. 5JCCh. 26.3 - Prob. 6JCCh. 26 - Prob. 1ECh. 26 - Prob. 2ECh. 26 - Prob. 4ECh. 26 - Prob. 5E
Ch. 26 - Prob. 6ECh. 26 - Prob. 7ECh. 26 - Prob. 8ECh. 26 - Prob. 9ECh. 26 - Prob. 10ECh. 26 - Prob. 11ECh. 26 - Sprouts An experiment on mung beans was performed...Ch. 26 - Prob. 13ECh. 26 - Prob. 14ECh. 26 - Prob. 15ECh. 26 - Prob. 16ECh. 26 - Prob. 17ECh. 26 - Washing For his final project, Jonathan examined...Ch. 26 - Prob. 19ECh. 26 - Prob. 20ECh. 26 - Prob. 21ECh. 26 - Chromatography A gas chromatograph is an...Ch. 26 - Prob. 23ECh. 26 - Prob. 24ECh. 26 - Prob. 25ECh. 26 - Peas In an experiment on growing sweet peas, a...Ch. 26 - Prob. 27ECh. 26 - Prob. 28E
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