Chapter 6: Q. 18 (page 287)
18. Roughly speaking, what are the normal scores corresponding to a sample of observations?
Simply subtract the mean score from the standard deviation to receive a score.
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In the article "Material Culture as Memory: Combs and Cremations in Early Medieval Britain" (Early Medieval Europe, Vol. 12, Issue 2, pp. 89-128). H. Williams discussed the frequency of cremation burials found in 17 archaeological sites in eastern England. Here are the data.
a. Obtain a normal probability plot of the given data.
b. Use part to identify any outliers.
c. Use partto assess the normality of the variable under consideration.
Answer true or false to each statement. Give reasons for your answers.
a. Two variables that have the same mean and standard deviation have the same distribution.
b. Two normally distributed variables that have the same mean and standard deviation have the some distribution.
Explain why assessing the normality of a variable is often important.
How is a normal probability plot used to detect outliers?
Complete the following table
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