Homework Help is Here – Start Your Trial Now!
Math
Statistics
Local county officials have heard reports that a service station is allowing cars 20 years and older with known violations to pass their annual safety inspection. From administrative data, they know 30% of all cars 20 years and older do not pass their annual safety inspection. To test their theory about the service station, they request records from the most recent 150 inspections of cars of this type, finding 30 of the 150 had been rejected. Assuming the true value of p is 0.3, which of the following expressions is the correct way to compute a test statistic for the proportion observed in the sample? OA. (0.2-0.3) 0.2(1-0.2) 150 (0.2-0.3) 0.3(1-0.3) 150 OB. OC. OD. 0 0 0 (0.3-0.2) 0.3(1-0.3) 150 (0.3-0.2) 0.2(1-0.2) 150

Local county officials have heard reports that a service station is allowing cars 20 years and older with known violations to pass their annual safety inspection. From administrative data, they know 30% of all cars 20 years and older do not pass their annual safety inspection. To test their theory about the service station, they request records from the most recent 150 inspections of cars of this type, finding 30 of the 150 had been rejected. Assuming the true value of p is 0.3, which of the following expressions is the correct way to compute a test statistic for the proportion observed in the sample? OA. (0.2-0.3) 0.2(1-0.2) 150 (0.2-0.3) 0.3(1-0.3) 150 OB. OC. OD. 0 0 0 (0.3-0.2) 0.3(1-0.3) 150 (0.3-0.2) 0.2(1-0.2) 150

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
QUESTION 10 Local county officials have heard reports that a service station is allowing cars 20 years and older with known violations to pass their annual safety inspection. From administrative data, they know 30% of all cars 20 years and older do not pass their annual safety inspection. To test their theory about the service station, they request records from the most recent 150 inspections of cars of this type, finding 30 of the 150 had been rejected. Assuming the true value of p is 0.3, which of the following expressions is the correct way to compute a test statistic for the proportion observed in the sample? O A. (0.2-0.3) ²0 O B. 30= OC. ²0 O D. 0.2(1-0.2) 150 (0.2-0.3) 0.3(1-0.3) 150 (0.3-0.2) 0.3(1-0.3) 150 (0.3-0.2) 0.2(1-0.2) 150
Transcribed Image Text:QUESTION 10 Local county officials have heard reports that a service station is allowing cars 20 years and older with known violations to pass their annual safety inspection. From administrative data, they know 30% of all cars 20 years and older do not pass their annual safety inspection. To test their theory about the service station, they request records from the most recent 150 inspections of cars of this type, finding 30 of the 150 had been rejected. Assuming the true value of p is 0.3, which of the following expressions is the correct way to compute a test statistic for the proportion observed in the sample? O A. (0.2-0.3) ²0 O B. 30= OC. ²0 O D. 0.2(1-0.2) 150 (0.2-0.3) 0.3(1-0.3) 150 (0.3-0.2) 0.3(1-0.3) 150 (0.3-0.2) 0.2(1-0.2) 150
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS