Question: 2.54 Students shoe size Data collected over several years from college students enrolled in a business statistics class regarding their shoe size shows a roughly

2.54 Students’ shoe size Data collected over several years from college students enrolled in a business statistics class regarding their shoe size shows a roughly bell-shaped distribution, with xQ = 9.91 and s = 2.07.

a. Give an interval within which about 95% of the shoe sizes fall.

b. Identify the shoe size of a student which is three standard deviations above the mean in this sample. Would this be a rather unusual observation? Why?

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