Loose-leaf Version for The Basic Practice of Statistics 7e & LaunchPad (Twelve Month Access)
7th Edition
ISBN: 9781319019334
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
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Question
Chapter 28.5, Problem 28.13AYK
(a)
To determine
To construct: The back-to-back stemplot of the five responses in each group.
To check: Whether there is any major deviation from normality apparent or not.
(b)
To determine
To find: The hypotheses, the two sample means, the t statistic and P-value, and conclusion.
(c)
To determine
To find: The hypotheses, the rank sum W for high-progress readers and P-value and conclusion.
To check: Whether the t and Wilcoxon tests lead you to different conclusions or not.
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Stem1: 1,4
Stem 2: 2,4,8
Stem3: 2,4
Stem4: 0,1,6,8
Stem5: 0,1,2,3,9
Stem 6: 2,2
What’s the Min,Q1, Med,Q3,Max?
Are the t-statistics here greater than 1.96? What do you conclude?
colgPA= 1.39+0.412 hsGPA
(.33) (0.094)
Find the P value
A poll before the elections showed that in a given sample 79% of people vote for candidate C. How many people should be interviewed so that the pollsters can be 99% sure that from 75% to 83% of the population will vote for candidate C? Round your answer to the whole number.
Chapter 28 Solutions
Loose-leaf Version for The Basic Practice of Statistics 7e & LaunchPad (Twelve Month Access)
Ch. 28.1 - Prob. 28.1AYKCh. 28.1 - Prob. 28.2AYKCh. 28.2 - Prob. 28.3AYKCh. 28.2 - Prob. 28.4AYKCh. 28.2 - Prob. 28.5AYKCh. 28.3 - Prob. 28.6AYKCh. 28.3 - Prob. 28.7AYKCh. 28.3 - Prob. 28.8AYKCh. 28.4 - Prob. 28.9AYKCh. 28.4 - Prob. 28.10AYK
Ch. 28.5 - Prob. 28.11AYKCh. 28.5 - Prob. 28.12AYKCh. 28.5 - Prob. 28.13AYKCh. 28.5 - Prob. 28.14AYKCh. 28.5 - Prob. 28.15AYKCh. 28.5 - Prob. 28.16AYKCh. 28.5 - Prob. 28.17AYKCh. 28.6 - Prob. 28.18AYKCh. 28.6 - Prob. 28.19AYKCh. 28.7 - Prob. 28.20AYKCh. 28.7 - Prob. 28.21AYKCh. 28.7 - Prob. 28.22AYKCh. 28.7 - Prob. 28.23AYKCh. 28.8 - Prob. 28.24AYKCh. 28.8 - Prob. 28.25AYKCh. 28.8 - Prob. 28.26AYKCh. 28.11 - Prob. 28.27AYKCh. 28.11 - Prob. 28.28AYKCh. 28.11 - Prob. 28.29AYKCh. 28.11 - Prob. 28.30AYKCh. 28.11 - Prob. 28.31AYKCh. 28 - Prob. 28.32CYSCh. 28 - Prob. 28.33CYSCh. 28 - Prob. 28.34CYSCh. 28 - Prob. 28.35CYSCh. 28 - Prob. 28.36CYSCh. 28 - Prob. 28.37CYSCh. 28 - Prob. 28.38CYSCh. 28 - Prob. 28.39CYSCh. 28 - Prob. 28.40CYSCh. 28 - Prob. 28.41CYSCh. 28 - Prob. 28.42ECh. 28 - Prob. 28.43ECh. 28 - Prob. 28.44ECh. 28 - Prob. 28.45ECh. 28 - Prob. 28.46ECh. 28 - Prob. 28.47ECh. 28 - Prob. 28.48ECh. 28 - Prob. 28.49ECh. 28 - Prob. 28.50ECh. 28 - Prob. 28.51ECh. 28 - Prob. 28.52E
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