Concept explainers
a.
To identify: The distribution that is used for testing a claim about given population mean.
a.
Answer to Problem 1CQQ
The distribution that is used for testing a claim about given population mean is the t distribution.
Explanation of Solution
The t test is used for smaller sample sizes and when the population standard deviation is not known. T test is used for testing the mean of the population with the sample or for comparing the differences of means of two samples. The t test consists the t statistic that follows student’s t distribution.
b.
To identify: The distribution that is used for testing a claim about given population proportion.
b.
Answer to Problem 1CQQ
The distribution that is used for testing a claim about given population proportion is the
Explanation of Solution
The z test is used for larger sample sizes and when the population standard deviation is known. z test is used for testing the proportion of the population with the sample or for comparing the differences of proportion of two samples. The z test consists the z statistic that follows normal distribution.
c.
To identify: The distribution that is used for testing a claim about given population standard deviation.
c.
Answer to Problem 1CQQ
The distribution that is used to test a claim about population standard deviation is
Explanation of Solution
The
Want to see more full solutions like this?
Chapter 8 Solutions
MyLab Statistics with Pearson eText -- Standalone Access Card -- for Elementary Statistics Using Excel (My Stat Lab)
- 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