Concept explainers
(a)
To find: out the test of the claim at the
(a)
Answer to Problem 5CRE
Yes
Explanation of Solution
Given:
Formula used:
Calculation:
The sample proportion is
The test-statistics is
P-value is the probability of getting the value of test statistic. The P-value is
When the P-value is smaller than the significance level, then reject the null hypothesis.
(b)
To Explain: that the double-blind experiment is important.
(b)
Explanation of Solution
A double-blind is one of the experiments in which neither the individuals nor the subjects who measure know which treatment was received, where in the single-blind experiment either the individuals who measure or the subjects know which treatment was received. Therefore, it is important for the subjects, such that it is chance to eliminate the placebo effect. This is also good for the individuals who execute who execute the measurements.
(c)
To Explain: the type I and type II error and find the serious one.
(c)
Answer to Problem 5CRE
Type-I error
Explanation of Solution
Given:
Type I error: reject the null hypothesis, if the null hypothesis
The drug appears to be effective, where it is not effective. People would take the drug without getting better.
Type II error: fail to reject the null hypothesis, if the null hypothesis is false.
The drug appears to be not effective, if it is effective. The drug would not come on the market, the reason is that the drug appears to be not effective.
Therefore Type-I error is the most serious one, because people would take a drug without getting better.
Chapter 10 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Essentials of Statistics (6th Edition)
Statistics: The Art and Science of Learning from Data (4th Edition)
Basic Business Statistics, Student Value Edition (13th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Introductory Statistics (10th Edition)
Introductory Statistics (2nd 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