(Answered) Question the parts of this exercise concern the variable

Statistics

Question: The parts of this exercise concern the variable Alcohol, which is data for number of alcoholic beverages consumed in a typical week as reported by n = 167 college students.

a. What is the shape of the histogram given for Alcohol? Are there any outliers?

b. Refer to part (a). Based on the shape of the histogram, explain whether or not the Empirical Rule will apply.

c. What numerical values are given by the applet for the interval mean ± s? What percentage of the data values are in this interval? Compare this percentage to the percentage that would be expected if the Empirical Rule applies.

d. What numerical values are given by the applet for the interval mean ± 2s? Explain why this interval is not a good description of possible values for the variable Alcohol.

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