
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Concept explainers
Topic Video
Question
Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 100 times and got 44 heads. We wish to find how significant is this evidence against equal probabilities.
- What is the sample proportion of heads?
_____ Round to 3 places. - Heads do not make up half of the sample. Is this sample evidence that the probabilities of heads and tails are different?
Take p to be theprobability of getting heads in a spin of a penny. Which hypotheses do we want to test?
- H0: p = 0.5
H1: p ≠ 0.5 - H0: p = 0.5
H1: p > 0.5 - H0: p = 0.5
H1: p < 0.5 - H0: p ≠ 0.5
H1: p = 0.5
- H0: p = 0.5
- Compute the z test statistic.
z = ______ Round to 2 places.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 3 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Not Indicated Drug Use Is Indicated Subject Uses Drugs 37 4. Subject Is Not a Drug User 17 35 The probability of a false positive test result isarrow_forwardPlease help me answer the question with details on how to do it. Thank you. 3. A couple plans to have 6 kids. What is the probability that there will be at least three girls? Assume probability of 0.5 to have a boy and the events are independent.arrow_forwardJaydip Don't upload any image pleasearrow_forward
- Based on the following table someone tells you “If you don’t use drugs, then the probability of you getting a negative test result is 0.993” Is that correct? Please explain why or why not.Drug Tests: Positive Test Negative TestSubject Uses Drugs: 44 6Subject Doesn’t Use Drugs: 90 860arrow_forwardFind the probability of student being both female and good?arrow_forwardplease solve 4 a, b and carrow_forward
- Use the data in the following table that shows results from a polygraph (lie detector) conducted by researchers Charles R. Honts and Gordon H. Barland. In each case, it was known if the subjects lied or did not lie, so the table indicates when the polygraph was correct. If two different subjects are randomly selected without replacement, find the probability that they both lied.arrow_forwardRefer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Indicated Drug Use Is Not Indicated Subject Uses Drugs 42 11 Subject Is Not a Drug User 17 34arrow_forwardSuppose you toss a coin 125 times and get 30 heads and 95 tails. Based on these results, what is the estimated probability of obtaining a tail on this coin? Use the empirical method. Group of answer choices 76% 24% 95% 30%arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- 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

MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc

Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning

Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning

Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON

The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman

Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman