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Statistics: Informed Decisions Using Data | 5th Edition | ISBN: 9780134133539 | Authors: Michael Sullivan III ISBN: 9780134133539 240

Solution for problem 1 Chapter 13.4

Statistics: Informed Decisions Using Data | 5th Edition

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Statistics: Informed Decisions Using Data | 5th Edition | ISBN: 9780134133539 | Authors: Michael Sullivan III

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 1

If factor A has 2 levels and factor B has 3 levels in a two-way ANOVA, we have a _ X _  factorial design.

Step-by-Step Solution:

Step 1 of 5) If factor A has 2 levels and factor B has 3 levels in a two-way ANOVA, we have a X factorial design. Notice that the interval about the individual (prediction interval for an individual response) is wider than the interval about the mean (confidence interval for a mean response). The reason for this should be clear: More variability is associated with individuals than with groups of individuals. That is, it is more difficult to predict a single 42-year-old female’s total cholesterol than it is to predict the mean total cholesterol for all 42-year-old females. Confidence and Prediction Intervals Using Technology Problem Construct a 95% confidence interval for the predicted mean total cholesterol of all 42-year-old females using statistical software. Construct a 95% prediction interval for the predicted total cholesterol for a 42-year-old female using statistical software. Approach We will use Minitab to obtain the intervals. The steps for obtaining confidence and prediction intervals using Minitab, Excel, and StatCrunch are given in the Technology Step-by-Step on page 692.

Step 2 of 2

Chapter 13.4, Problem 1 is Solved
Textbook: Statistics: Informed Decisions Using Data
Edition: 5
Author: Michael Sullivan III
ISBN: 9780134133539

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