Concept explainers
To identify: The errors in the provided solution and correct them.
Explanation of Solution
Given:
Formula used:
The formula to compute the test statistic is:
Calculation:
The sample proportion is:
Here, it is required to check whether the coin is fair or not. Mistake has been committed in stating the hypotheses. Thus, the appropriate null and alternative hypotheses are:
The correct test statistic can be computed as:
The p-value can be computed as:
Here, p-value is 0.373. Here, p-value >level of significance.
There is a mistake in the decision rule. Thus, the decision is not to reject the null hypothesis.
Conclusion:
Thus, at 5% significance level there is sufficient evidence to conclude that the coin is fair.
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Essentials of Statistics (6th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics Using Excel (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