Purdue STAT 350 Lab 3 Assessing the Normality of Data Solution Answer (2018)
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STAT 350 Lab 3 Assessing the Normality of Data Solution (2018) - Purdue University
A. (10 points) Online Prelab
B. (10 points) Normal random numbers (no data file required) Use software to generate 10 observations from a normal distribution with mean, μ = 9 and standard deviation, σ = 4.5.
1. (3 pts.) Code:
2. (3 pts.) Make a histogram of these observations. How does the shape of the histogram compare with a normal density curve?
3. (4 pts.) Make a normal probability plot of the data. Does the plot suggest any important deviations from normality? Please provide specifics to explain your answer.
C. (10 points) Normal random numbers (no data file required) Use software to generate 100 observations from a normal distribution with mean, μ = 9 and standard deviation, σ = 4.5.
D. (40 points) Random numbers from other distributions (no data file required)
E. (15 points) Comparison of data – GROUP (submitted separately on Blackboard)
F. (15 points) The distribution of Assaults Per Population (data file: Clean US Data)
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