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A simple random sample of 20 employees from an engineering firm is drawn. The hourly salaries, in Canadian Dollars, for this sample are reported in the following table: 70 85 i. ii. 45 40 60 50 50 65 65 45 40 60 90 55 55 45 40 120 50 70 Calculate mean and standard deviation for this sample. Does this sample have any outliers? Use a graphical representation to 11 justify your answer. Explain what you observe and why there are or are not any outliers. (You need to show all calculations and your graphs need to have data labels.)

A simple random sample of 20 employees from an engineering firm is drawn. The hourly salaries, in Canadian Dollars, for this sample are reported in the following table: 70 85 i. ii. 45 40 60 50 50 65 65 45 40 60 90 55 55 45 40 120 50 70 Calculate mean and standard deviation for this sample. Does this sample have any outliers? Use a graphical representation to 11 justify your answer. Explain what you observe and why there are or are not any outliers. (You need to show all calculations and your graphs need to have data labels.)

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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A simple random sample of 20 employees from an engineering firm is drawn. The hourly salaries, in Canadian Dollars, for this sample are reported in the following table: 70 85 i. ii. 45 40 60 50 50 65 65 45 40 60 90 55 55 45 40 120 50 70 ) Calculate mean and standard deviation for this sample. Does this sample have any outliers? Use a graphical representation to 11 justify your answer. Explain what you observe and why there are or are not any outliers. (You need to show all calculations and your graphs need to have data labels.)
Transcribed Image Text:A simple random sample of 20 employees from an engineering firm is drawn. The hourly salaries, in Canadian Dollars, for this sample are reported in the following table: 70 85 i. ii. 45 40 60 50 50 65 65 45 40 60 90 55 55 45 40 120 50 70 ) Calculate mean and standard deviation for this sample. Does this sample have any outliers? Use a graphical representation to 11 justify your answer. Explain what you observe and why there are or are not any outliers. (You need to show all calculations and your graphs need to have data labels.)
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