The Basic Practice of Statistics
7th Edition
ISBN: 9781464142536
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
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Question
Chapter 29.8, Problem 29.24AYK
a.
To determine
The regression equation for predicting tuition fees using year as explanatory variables.
b.
To determine
The predicted value of tuition and fees for the year 1971.
c.
To determine
Whether the predicted value in part b makes sense.
d.
To determine
To plot: The residual plot of the obtained regression model.
To explain: About the adequacy of linear fit using the obtained residual plot.
e.
To determine
Whether the regression model over estimates or underestimates the tuition fees values for the colleges in 1990s.
f.
To determine
To fit: The quadratic regression model for the data.
g.
To determine
To explain: Whether the quadratic model gives a good fit than linear model.
h.
To determine
To explain: Whether the quadratic model can be used to make inferences on the quadratic model.
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What is the test statistic W? W=5 (incorrect)
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What is the p-value of this test? (p-value < 0.001-- incorrect)
Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages
pages
127
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What is the sum of the negative ranks (W-)? 75 What is the sum of the positive ranks (W+)? 5What type of test is this? two tailedWhat is the test statistic W? 5 These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=12
Alpha Level
0.001
0.005
0.01
0.025
0.05
0.1
0.2
Critical Value
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68
64
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56
50
What is the p-value for this test? p-value < 0.001
Chapter 29 Solutions
The Basic Practice of Statistics
Ch. 29.1 - Prob. 29.1AYKCh. 29.1 - Prob. 29.2AYKCh. 29.2 - Prob. 29.3AYKCh. 29.2 - Prob. 29.4AYKCh. 29.2 - Prob. 29.5AYKCh. 29.3 - Prob. 29.6AYKCh. 29.3 - Prob. 29.7AYKCh. 29.4 - Prob. 29.8AYKCh. 29.4 - Prob. 29.9AYKCh. 29.4 - Prob. 29.10AYK
Ch. 29.5 - Prob. 29.11AYKCh. 29.5 - Prob. 29.12AYKCh. 29.5 - Prob. 29.13AYKCh. 29.5 - Prob. 29.15AYKCh. 29.5 - Prob. 29.16AYKCh. 29.6 - Prob. 29.17AYKCh. 29.6 - Prob. 29.18AYKCh. 29.6 - Prob. 29.19AYKCh. 29.7 - Prob. 29.21AYKCh. 29.7 - Prob. 29.22AYKCh. 29.8 - Prob. 29.23AYKCh. 29.8 - Prob. 29.24AYKCh. 29.8 - Prob. 29.25AYKCh. 29.9 - Prob. 29.26AYKCh. 29.9 - Prob. 29.27AYKCh. 29.10 - Prob. 29.29AYKCh. 29.10 - Prob. 29.30AYKCh. 29 - Prob. 29.31CYSCh. 29 - Prob. 29.32CYSCh. 29 - Prob. 29.33CYSCh. 29 - Prob. 29.34CYSCh. 29 - Prob. 29.35CYSCh. 29 - Prob. 29.36CYSCh. 29 - Prob. 29.37CYSCh. 29 - Prob. 29.38CYSCh. 29 - Prob. 29.39CYSCh. 29 - Prob. 29.40CYSCh. 29 - Prob. 29.41ECh. 29 - Prob. 29.42ECh. 29 - Prob. 29.43ECh. 29 - Prob. 29.44ECh. 29 - Prob. 29.45ECh. 29 - Prob. 29.46ECh. 29 - Prob. 29.47ECh. 29 - Prob. 29.48ECh. 29 - Prob. 29.49ECh. 29 - Prob. 29.50ECh. 29 - Prob. 29.51ECh. 29 - Prob. 29.52ECh. 29 - Prob. 29.53ECh. 29 - Prob. 29.54E
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