Free Response: Answer the following questions to the best of your ability. You will be graded on the accuracy of your answer and the validity of your claim. 7) The manager of a local fast-food restaurant is concerned about customers who ask for a water cup when placing an order but fill the cup with a soft drink from the beverage fountain instead of filling the cup with water. The manager selected a random sample of 90 customers who asked for a water cup when placing an order and found that 21 of those customers filled the cup with a soft drink from the beverage fountain. (a) Construct and interpret a 90 percent confidence interval for the proportion of all customers who, having asked for a water cup when placing an order, will fill the cup with a soft drink from the beverage fountain. State your method of inference by name or formula and check for conditions for inference. (b) The manager estimates that each customer who asks for a water cup but fills it with a soft drink costs the restaurant $0.30. Suppose that in the month of June 4,500 customers ask for a when placing an order. Use the confidence interval constructed in part (a) to give an interval estimate for the cost to the restaurant for the month of June from the customers who water cup ask for a water cup but fill the cup with a soft drink.
Free Response: Answer the following questions to the best of your ability. You will be graded on the accuracy of your answer and the validity of your claim. 7) The manager of a local fast-food restaurant is concerned about customers who ask for a water cup when placing an order but fill the cup with a soft drink from the beverage fountain instead of filling the cup with water. The manager selected a random sample of 90 customers who asked for a water cup when placing an order and found that 21 of those customers filled the cup with a soft drink from the beverage fountain. (a) Construct and interpret a 90 percent confidence interval for the proportion of all customers who, having asked for a water cup when placing an order, will fill the cup with a soft drink from the beverage fountain. State your method of inference by name or formula and check for conditions for inference. (b) The manager estimates that each customer who asks for a water cup but fills it with a soft drink costs the restaurant $0.30. Suppose that in the month of June 4,500 customers ask for a when placing an order. Use the confidence interval constructed in part (a) to give an interval estimate for the cost to the restaurant for the month of June from the customers who water cup ask for a water cup but fill the cup with a soft drink.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
I need the solution
Transcribed Image Text:Free Response: Answer the following questions to the best of your ability. You will be graded on the accuracy
of your answer and the validity of your claim.
7) The manager of a local fast-food restaurant is concerned about customers who ask for a water cup
when placing an order but fill the cup with a soft drink from the beverage fountain instead of filling the
cup with water. The manager selected a random sample of 90 customers who asked for a water cup
when placing an order and found that 21 of those customers filled the cup with a soft drink from the
beverage fountain.
(a) Construct and interpret a 90 percent confidence interval for the proportion of all customers
who, having asked for a water cup when placing an order, will fill the cup with a soft drink from
the beverage fountain. State your method of inference by name or formula and check for
conditions for inference.
(b) The manager estimates that each customer who asks for a water cup but fills it with a soft
drink costs the restaurant $0.30. Suppose that in the month of June 4,500 customers ask for a
when placing an order. Use the confidence interval constructed in part (a) to give an
interval estimate for the cost to the restaurant for the month of June from the customers who
water
cup
ask for a water cup but fill the cup with a soft drink.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
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.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman