Homework Help is Here – Start Your Trial Now!
Math
Statistics
(a) What is the mean service time from the 521 customers? The mean service time from the 521 customers is seconds (Type an integer or a decimal. Do not round.)

(a) What is the mean service time from the 521 customers? The mean service time from the 521 customers is seconds (Type an integer or a decimal. Do not round.)

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
**Drive-Through Service Time Analysis** The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. A 99% confidence interval, derived from examining 521 customers at Taco Bell's drive-through, reveals a lower bound of 152.6 seconds and an upper bound of 158.8 seconds. Below are tasks related to this data. --- **Part (a)** **Question:** What is the mean service time from the 521 customers? **Answer:** The mean service time from the 521 customers is [ ] seconds. *Note:* Type an integer or a decimal. Do not round. --- **Explanation:** The confidence interval provides a range in which the true mean service time is likely to fall, with 99% certainty. The mean service time is typically calculated as the midpoint of the interval, which would be (152.6 + 158.8) / 2 seconds.
Transcribed Image Text:**Drive-Through Service Time Analysis** The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. A 99% confidence interval, derived from examining 521 customers at Taco Bell's drive-through, reveals a lower bound of 152.6 seconds and an upper bound of 158.8 seconds. Below are tasks related to this data. --- **Part (a)** **Question:** What is the mean service time from the 521 customers? **Answer:** The mean service time from the 521 customers is [ ] seconds. *Note:* Type an integer or a decimal. Do not round. --- **Explanation:** The confidence interval provides a range in which the true mean service time is likely to fall, with 99% certainty. The mean service time is typically calculated as the midpoint of the interval, which would be (152.6 + 158.8) / 2 seconds.
Expert Solution
steps

Step by step

Solved in 3 steps with 9 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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