The correct answer from the options that this sample mean is an unbiased estimator of the mean weight
Answer to Problem 67E
The correct answer is (b).
Explanation of Solution
Given information:
Mean weight,
Number of students in the random sample = 219
Here, the mean weight is
It is known that the unbiased estimator of a mean weight is the sample mean which means, the population mean is equal to the average sample mean over all possible samples of size n.
Thus, in all possible samples of size 219 from this population, the mean of the values of
Hence, the correct answer is (b).
Chapter 7 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Statistics for Business and Economics (13th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Basic Business Statistics, Student Value Edition
Elementary Statistics: Picturing the World (7th Edition)
Introductory Statistics (10th 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