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
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
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