Concept explainers
a.
To show: The test procedure that is to be used here.
a.
Explanation of Solution
Given:
Before and after conditions are involved
In this case, two samples of smoker are involved which have been used to make the comparison in two different periods The same number of smokers are involved in each sample and the condition of before and after is fulfilling here.
Thus, the appropriate test is paired t -statistic.
b.
To show: The test procedure that is to be used here.
b.
Explanation of Solution
Given:
Here, it is required to find out the percentage of senior citizens who are attending a play one or more year than who are not attending.
The z- test for two sample proportions is one of the statistical techniques that is used to find out if there is a difference in proportions of the two samples or not. Here, it is required to find out the percentage of senior citizens who are attending a play one or more year than who are not attending.
Thus, the appropriate test is two sample z test.
Want to see more full solutions like this?
Chapter 10 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Fundamentals of Statistics (5th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics Using Excel (6th Edition)
STATS:DATA+MODELS-W/DVD
Elementary Statistics: Picturing the World (6th Edition)
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman