Suppose that the waiting times for patients at a local hospital are normally distributed with a known population standard deviation of 30 minutes. A random sample of 75 patients in the local hospital had a mean time of 90 minutes. Assume a 95% confidence interval for the population mean u. The standard error of the 95% confidence interval is O a. 3.46 O b. 0.40 Oc. 13.69 O d. 2.50
Suppose that the waiting times for patients at a local hospital are normally distributed with a known population standard deviation of 30 minutes. A random sample of 75 patients in the local hospital had a mean time of 90 minutes. Assume a 95% confidence interval for the population mean u. The standard error of the 95% confidence interval is O a. 3.46 O b. 0.40 Oc. 13.69 O d. 2.50
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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![Suppose that the waiting times for patients at a local hospital are normally distributed with a known population standard deviation of
30 minutes. A random sample of 75 patients in the local hospital had a mean time of 90 minutes. Assume a 95% confidence interval for
the population mean u. The standard error of the 95% confidence interval is
O a. 3.46
O b. 0.40
O c.
13.69
O d. 2.50](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff61b7bd5-28a3-4463-a6ef-cc5fc324c7ba%2F4b8a890d-d5fa-4851-8fd0-7a6943f03f5f%2Fmptokpxdzj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Suppose that the waiting times for patients at a local hospital are normally distributed with a known population standard deviation of
30 minutes. A random sample of 75 patients in the local hospital had a mean time of 90 minutes. Assume a 95% confidence interval for
the population mean u. The standard error of the 95% confidence interval is
O a. 3.46
O b. 0.40
O c.
13.69
O d. 2.50
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