To test whether the students at a university study 2.5 hours (150 min) 0n an average in the night:
Explanation of Solution
Given the following information:
The test procedure:
The null and alternative hypothesis is given by
The test statistic is given by,
Reject the null hypothesis if
Calculation:
On substituting the given values the test statistic is given by
The critical value at 0.05 level of significance is
Since
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Introductory Statistics
Statistics: The Art and Science of Learning from Data (4th Edition)
Basic Business Statistics, Student Value Edition
STATS:DATA+MODELS-W/DVD
Essentials of Statistics, Books a la Carte Edition (5th 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