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We wish to know the mean wait time that residents of Nova Scotia need to wait for surgical procedures. In 2014, the last time a survey was completed the mean was 48.4 days and standard deviation was 10.3 days resulting in a margin of error of 0.9 days. The Province wishes to reassess and evaluate their strategies in trying to reduce surgical wait times within the Province. Question content area bottom a. How large a sample must be used if they want to estimate the mean surgical wait time now with a 98% level of confidence if they want the margin of error to be within 0.8 days. A. 637 B. 897 C. 449 D. 1007 b. If the level of confidence was decreased to 95%, would the sample size required increase or decrease?

We wish to know the mean wait time that residents of Nova Scotia need to wait for surgical procedures. In 2014, the last time a survey was completed the mean was 48.4 days and standard deviation was 10.3 days resulting in a margin of error of 0.9 days. The Province wishes to reassess and evaluate their strategies in trying to reduce surgical wait times within the Province. Question content area bottom a. How large a sample must be used if they want to estimate the mean surgical wait time now with a 98% level of confidence if they want the margin of error to be within 0.8 days. A. 637 B. 897 C. 449 D. 1007 b. If the level of confidence was decreased to 95%, would the sample size required increase or decrease?

MATLAB: An Introduction with Applications
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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We wish to know the mean wait time that residents of Nova Scotia need to wait for surgical procedures. In 2014, the last time a survey was completed the mean was 48.4 days and standard deviation was 10.3 days resulting in a margin of error of 0.9 days. The Province wishes to reassess and evaluate their strategies in trying to reduce surgical wait times within the Province. Question content area bottom a. How large a sample must be used if they want to estimate the mean surgical wait time now with a 98% level of confidence if they want the margin of error to be within 0.8 days. A. 637 B. 897 C. 449 D. 1007 b. If the level of confidence was decreased to 95%, would the sample size required increase or decrease?
Transcribed Image Text:We wish to know the mean wait time that residents of Nova Scotia need to wait for surgical procedures. In 2014, the last time a survey was completed the mean was 48.4 days and standard deviation was 10.3 days resulting in a margin of error of 0.9 days. The Province wishes to reassess and evaluate their strategies in trying to reduce surgical wait times within the Province. Question content area bottom a. How large a sample must be used if they want to estimate the mean surgical wait time now with a 98% level of confidence if they want the margin of error to be within 0.8 days. A. 637 B. 897 C. 449 D. 1007 b. If the level of confidence was decreased to 95%, would the sample size required increase or decrease?
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