Essay
You are given a sample of 8 measurements: 13, 11, 15, 16, 14, 14, 13, and 15.
a. Calculate the range.
b. Calculate the sample variance and standard deviation.
c. Compare the range and the standard deviation. Approximately how many standard deviations equal the value of the range?
Correct Answer:
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a. R = 5
b. 
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Correct Answer:
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b.
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