minutes. The average time to receive the order for the 20 customers was 3.5 minutes with a standard deviation of 0.75 minutes. -Unu ihe. The fast-food chain selects 20 drive-thru orders at random and measures the time it takes for the customer to receive their order in Which of the equations below would be the correct way to determine a 95% confidence interval. O a 0.75 2.093 x 3.5 20 O b.3.5+2.093x0.75 Oc. 3.5+2.093x 0,.75 d. 3.5+2.093x 0.75 V19

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
19
A fast-food chain has set a goal to have the shortest average wait times in their drive-thru line. The fast-food chain selects 20 drive-thru orders at random and measures the time it takes for the customer
minutes. The average time to receive the order for the 20 customers was 3,5 minutes with a standard deviation of 0.75 minutes.
receive their order in
Which of the equations below would be the correct way to determine a 95% confidence interval.
Oa.
0.75+2.093x
3.5
20
O b.3.5+2.093×0.75
Oc.
3.5+ 2.093x
0.75
20
d.
3.5+2.093x
0.75
19
Transcribed Image Text:A fast-food chain has set a goal to have the shortest average wait times in their drive-thru line. The fast-food chain selects 20 drive-thru orders at random and measures the time it takes for the customer minutes. The average time to receive the order for the 20 customers was 3,5 minutes with a standard deviation of 0.75 minutes. receive their order in Which of the equations below would be the correct way to determine a 95% confidence interval. Oa. 0.75+2.093x 3.5 20 O b.3.5+2.093×0.75 Oc. 3.5+ 2.093x 0.75 20 d. 3.5+2.093x 0.75 19
Expert Solution
steps

Step by step

Solved in 2 steps

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