Hospital administrators wish to learn the average length of stay of all COVID-19 patients. A statistician obtained a simple random sample of 32 COVID-19 patients which showed an average stay of 20.7 days with a sample standard deviation of 3.1 days. Construct and interpret a 95% confidence interval for the average length of stay of COVID-19 patients. i. Procedure: Select an answer Select an answer One proportion Z procedure One variance x² procedure One mean Z procedure One mean T procedure ii. Assumptions: (select everything that applies) Population standard deviation is unknown The number of positive and negative responses Normal population Simple random sample Sample size is greater than 30 Population standard deviation is known iii. Unknown parameter: Select an answer Select an answer 0², population variance p. population proportion u, population mean

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
Question 4
Hospital administrators wish to learn the average length of stay of all COVID-19 patients. A statistician
obtained a simple random sample of 32 COVID-19 patients which showed an average stay of 20.7 days with
a sample standard deviation of 3.1 days. Construct and interpret a 95% confidence interval for the average
length of stay of COVID-19 patients.
i. Procedure: Select an answer
Select an answer
One proportion Z procedure
One variance x² procedure
One mean Z procedure
One mean T procedure
ii. Assumptions: (select everything that applies)
Population standard deviation is unknown
The number of positive and negative responses
Normal population
Simple random sample
Sample size is greater than 30
Population standard deviation is known
iii. Unknown parameter: Select an answer
Select an answer
o², population variance
p. population proportion
μ, population mean
Transcribed Image Text:Question 4 Hospital administrators wish to learn the average length of stay of all COVID-19 patients. A statistician obtained a simple random sample of 32 COVID-19 patients which showed an average stay of 20.7 days with a sample standard deviation of 3.1 days. Construct and interpret a 95% confidence interval for the average length of stay of COVID-19 patients. i. Procedure: Select an answer Select an answer One proportion Z procedure One variance x² procedure One mean Z procedure One mean T procedure ii. Assumptions: (select everything that applies) Population standard deviation is unknown The number of positive and negative responses Normal population Simple random sample Sample size is greater than 30 Population standard deviation is known iii. Unknown parameter: Select an answer Select an answer o², population variance p. population proportion μ, population mean
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 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