A self-serving coffee-dispensing machine at a gas station convenience store is supposed to deliver 8 oz when a small drink is ordered. A customer claims that the mean serving of a coffee-dispensing machine is less than 8 oz per serving. A simple random sample of 37 servings shows the following data: 7.7 8 7.3 7 7.7 7.3 7.9 7.4 7.3 8.1 7.6 8 7 7.1 6.4 8.7 7.8 7.6 7.9 7.5 7.2 6.8 6.7 6.9 8.1 7.7 7.6 7.6 7.8 7.7 6.7 7.6 7.6 7.9 7.5 7.4 7.3 At the 10% significance level, test the customer's claim assuming that the population standard deviation of servings is 0.45 oz. (Note: The average and the standard deviation of the data are respectively 7.5 oz and 0.47 oz.) Procedure: Assumptions: (select everything that applies) Normal population The number of positive and negative responses are both greater than 10 Simple random sample Sample size is greater than 30 Population standard deviation is unknown Population standard deviation is known
A self-serving coffee-dispensing machine at a gas station convenience store is supposed to deliver 8 oz when a small drink is ordered. A customer claims that the mean serving of a coffee-dispensing machine is less than 8 oz per serving. A simple random sample of 37 servings shows the following data: 7.7 8 7.3 7 7.7 7.3 7.9 7.4 7.3 8.1 7.6 8 7 7.1 6.4 8.7 7.8 7.6 7.9 7.5 7.2 6.8 6.7 6.9 8.1 7.7 7.6 7.6 7.8 7.7 6.7 7.6 7.6 7.9 7.5 7.4 7.3 At the 10% significance level, test the customer's claim assuming that the population standard deviation of servings is 0.45 oz. (Note: The average and the standard deviation of the data are respectively 7.5 oz and 0.47 oz.) Procedure: Assumptions: (select everything that applies) Normal population The number of positive and negative responses are both greater than 10 Simple random sample Sample size is greater than 30 Population standard deviation is unknown Population standard deviation is known
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
A self-serving coffee-dispensing machine at a gas station convenience store is supposed to deliver 8 oz when a small drink is ordered. A customer claims that the mean serving of a coffee-dispensing machine is less than 8 oz per serving. A simple random sample of 37 servings shows the following data:
| 7.7 | 8 | 7.3 | 7 | 7.7 |
| 7.3 | 7.9 | 7.4 | 7.3 | 8.1 |
| 7.6 | 8 | 7 | 7.1 | 6.4 |
| 8.7 | 7.8 | 7.6 | 7.9 | 7.5 |
| 7.2 | 6.8 | 6.7 | 6.9 | 8.1 |
| 7.7 | 7.6 | 7.6 | 7.8 | 7.7 |
| 6.7 | 7.6 | 7.6 | 7.9 | 7.5 |
| 7.4 | 7.3 |
At the 10% significance level, test the customer's claim assuming that the population standard deviation of servings is 0.45 oz. (Note: The average and the standard deviation of the data are respectively 7.5 oz and 0.47 oz.)
Procedure:
Assumptions: (select everything that applies)
- Normal population
- The number of positive and negative responses are both greater than 10
- Simple random sample
Sample size is greater than 30- Population standard deviation is unknown
- Population standard deviation is known
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 2 images
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