A fast-food chain developed a new process to ensure that the orders at the drive-through are filled correctly. Previously, 88% of orders were filled correctly. The manager wants to know if the new proce has increased the proportion of orders that are correctly filled. A sample of 40 orders using the new process was selected and 36 were filled correctly. 1. Find the critical value (to 3 decimal places) for this right-sided hypothesis test, where a = 0.01 2. Calculate the absolute value of the test statistic, correct to 2 decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
A fast-food chain developed a new process to ensure that the orders at the drive-through are filled
correctly. Previously, 88% of orders were filled correctly. The manager wants to know if the new process
has increased the proportion of orders that are correctly filled. A sample of 40 orders using the new
process was selected and 36 were filled correctly.
1. Find the critical value (to 3 decimal places) for this right-sided hypothesis test, where a = 0.01
2. Calculate the absolute value of the test statistic, correct to 2 decimal places.
3. Calculate the p-value of this hypothesis test, correct to 4 decimal places.
Transcribed Image Text:A fast-food chain developed a new process to ensure that the orders at the drive-through are filled correctly. Previously, 88% of orders were filled correctly. The manager wants to know if the new process has increased the proportion of orders that are correctly filled. A sample of 40 orders using the new process was selected and 36 were filled correctly. 1. Find the critical value (to 3 decimal places) for this right-sided hypothesis test, where a = 0.01 2. Calculate the absolute value of the test statistic, correct to 2 decimal places. 3. Calculate the p-value of this hypothesis test, correct to 4 decimal places.
Expert Solution
steps

Step by step

Solved in 4 steps

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