Table below indicates the average number of injuries per thousand workers hours in a sample of 50 firms taken from a particular industry. The mean for this variable is x = 2. 32 and the sample standard deviation is s = 2. 32
Table below indicates the average number of injuries per thousand workers hours in a sample of 50 firms taken from a particular industry. The mean for this variable is x = 2. 32 and the sample standard deviation is s = 2. 32
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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Transcribed Image Text:Question 1 (Answer this question in Excel and submit the excel file)
Table below indicates the average number of injuries per thousand workers hours in a
sample of 50 firms taken from a particular industry. The mean for this variable is
x = 2.32 and the sample standard deviation is s = 2. 32
Average number
injuries per
Number of
thousand worker-hours
firms
1.5–1.7
3
1.8–2.0
12
2.1-2.3
14
2.4–2.6
9
2.7–2.9
7
3.0–3.2
5
50
Test the null hypothesis that the population pattern of frequencies is distributed as a
normal distribution, using the 5 percent level of significance.
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