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

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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.
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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