Intro Stats
4th Edition
ISBN: 9780321826275
Author: Richard D. De Veaux
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 19, Problem 33E
a.
To determine
Explain Type-I error in this context.
b.
To determine
Explain type-II error in this context.
c.
To determine
Identify which type of error is more serious for the shop owners.
d.
To determine
Identify which type of error might environmentalists consider more serious.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A clean air standard requires that vehicle exhaust emissions not exceed specified limits for various pollutants. Many states require cars be tested annually to be sure they meet these standards. Suppose state regulators double-check a random sample of cars that a suspect repair shop has certified as okay. They will revoke the shop’s license if they find significant evidence that the shop is certifying vehicles that do not meet standards.
a.Which type of error would the shop’s owner consider more serious? Why?
b.Which type of error might environmentalists consider more serious? Why?
2) The federal guideline for smog is 12% pollutants per 10,000 volume of air. A metropolitan
city is trying to bring its smog level into federal guidelines. The city comes up with a new
policy where city employees are to use city transportation to and from work. A local
environmental group does not think the city is doing enough, and that the pollution
percentage is greater than 12%. An independent agency hired by the city to run a test used
a random sample size of 250 and found the pollutants at 15%. Test an appropriate
hypothesis and state your conclusion. Be sure the appropriate assumptions and conditions
are satisfied before you proceed.
A variable that is related to either the response variable or the predictor variable or both, but which is excluded from the analysis is a,
Select one:
a. quality variable.
b. lurking variable.
c. random variable.
d. discrete variable.
Chapter 19 Solutions
Intro Stats
Ch. 19.4 - 1. An experiment to test the fairness of a...Ch. 19.4 - Prob. 2JCCh. 19.4 - Prob. 3JCCh. 19.5 - Remember the bank thats sending out DVDs to try to...Ch. 19.5 - Prob. 5JCCh. 19.5 - For the bank, which situation has higher power: a...Ch. 19 - Parameters and hypotheses For each of the...Ch. 19 - Prob. 2ECh. 19 - P-values Which of the following are true? If...Ch. 19 - Prob. 4E
Ch. 19 - Prob. 5ECh. 19 - Prob. 6ECh. 19 - Prob. 7ECh. 19 - Prob. 8ECh. 19 - Prob. 9ECh. 19 - More critical values For each of the following...Ch. 19 - SECTION 16.4 11. Errors For each of the following...Ch. 19 - More errors For each of the following situations,...Ch. 19 - Prob. 13ECh. 19 - 14. Which alternative? In each of the following...Ch. 19 - CHAPTER EXERCISES 13. P-value A medical researcher...Ch. 19 - Prob. 16ECh. 19 - Alpha A researcher developing scanners to search...Ch. 19 - Prob. 18ECh. 19 - Prob. 19ECh. 19 - Significant again? A new reading program may...Ch. 19 - Prob. 21ECh. 19 - Is the Euro fair? Soon after the Euro was...Ch. 19 - 23. Approval 2011 In November 2011, Barack Obama’s...Ch. 19 - Prob. 24ECh. 19 - Prob. 25ECh. 19 - Prob. 26ECh. 19 - Prob. 27ECh. 19 - Prob. 28ECh. 19 - Prob. 29ECh. 19 - Prob. 30ECh. 19 - 31. Homeowners 2009 In 2009, the U.S. Census...Ch. 19 - Alzheimers Testing for Alzheimers disease can be a...Ch. 19 - Prob. 33ECh. 19 - Quality control Production managers on an assembly...Ch. 19 - Prob. 35ECh. 19 - 36. Production Consider again the task of the...Ch. 19 - Equal opportunity? A company is sued for job...Ch. 19 - Stop signs Highway safety engineers test new road...Ch. 19 - Prob. 39ECh. 19 - Ads A company is willing to renew its advertising...Ch. 19 - 41. Software, part II 203 students signed up for...Ch. 19 - Prob. 42ECh. 19 - Prob. 43ECh. 19 - Catheters During an angiogram, heart problems can...Ch. 19 - Prob. 45ECh. 19 - Prob. 46ECh. 19 - Prob. 47ECh. 19 - Faulty or not? You are in charge of shipping...Ch. 19 - Prob. 49ECh. 19 - Prob. 50E
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
- What is an experiment? Give two examples.arrow_forwarda. Distinguish between Types I and II errors in statistical analysis. b. i. What is statistical power? ii. State two factors that can affect the statistical power of a test.arrow_forwardConsider a researcher who is exploring new potential treatments for specific forms of cancer. This researcher is focused on not concluding that a treatment is ineffective, when it may really be effective (that is, she wishes to avoid making a Type II error). What should this researcher do? a. set a lower sample mean b. set a higher sample mean c. set a higher alpha level d. set a lower alpha levelarrow_forward
- Assuming you are in a member of a research team convened to study rare blood disorder in the adult population in New York. Which of these study designs will you consider as the most appropriate? cross-sectional case-control experimental cohortarrow_forwardFederal law under Title 49 of the United States Code, Chapter 301, Motor Vehicle Safety Standard took effect on January 1, 1968 and required all vehicles (except buses) to be fitted with seat belts in all designated seating positions. While most states have laws requiring seat belt use today, some people still do not “buckle up.” Let’s assume that 90 % of drivers do “buckle up.” If drivers are randomly stopped to check seat belt usage, answer the following questions and show your work. If they stop 30 cars during the first hour, find the mean and standard deviation of the number of drivers not expected to be wearing seatbelts? If they stop 120 cars during this safety check, what is the probability they find at least 12 drivers not wearing seatbelts?arrow_forwardFederal law under Title 49 of the United States Code, Chapter 301, Motor Vehicle Safety Standard took effect on January 1, 1968 and required all vehicles (except buses) to be fitted with seat belts in all designated seating positions. While most states have laws requiring seat belt use today, some people still do not “buckle up.” Let’s assume that 90 % of drivers do “buckle up.” If drivers are randomly stopped to check seat belt usage, answer the following questions and show your work. How many drivers do they expect to stop before finding a driver whose seatbelt is not buckled? What is the probability that the second unbelted driver is in the ninth car stopped? What is the probability that of the first 10 drivers, 8 or more are wearing their seatbelts?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Introduction to Statistical Quality Control (SQC); Author: FORSEdu;https://www.youtube.com/watch?v=c18FKHUDZv8;License: Standard YouTube License, CC-BY
[DAXX] Introduction to Statistical Quality Control; Author: The Academician;https://www.youtube.com/watch?v=ypZGDxjSM60;License: Standard Youtube License