Directions:Solve the following problems and answer the following questions. Document, justify or otherwise explain any calculations and computations. Even if working as a group, each group member must still submit complete solutions as documentation. Using appropriate technology, including software or spreadsheets.

#1: Consider the following small sample of the number of instances of personal injury incidents and accidents reported by customers during store visits in randomly selected regions of the Mega Mart supercenter retail chain last week:

25

24

25

26

25

29

21

17

33

(a) Compute the sample standard deviation for this sample data. [HINTS: A computational table is expected.]

(b) Compute the sample variance. [HINTS: Although spreadsheet software can help you check your answer, it was determined with standard deviation computations, correct?]

(c) Complete the following reasonable conclusion about the number of reported instances: "On average, there were ## reported personal injuries at random regional Mega Mart stores last week, give or take ## reported personal injuries." [HINTS: Think sample standard deviation and sample mean.]

(d) Measure the effect size by reporting the coefficient of variation, expressed in percentage form. [HINTS: No rounding necessary?]

#2: Consider the following small population that is the number of patrons frequenting the eight stores of the boutique fragrance outlet chain, Aroma Auction, the Friday before Mother's Day:

47

53

41

49

51

53

47

59

(a) Compute the population standard deviation for this sample data. [HINTS: A computational table is expected.]

(b) Compute the population variance. [HINTS: Although spreadsheet software can help you check your answer, it was determined with standard deviation computations, correct?]

(c) Complete the following reasonable conclusion about the number of patrons frequenting the eight stores of the fragrance chain: "On average, there were ## patrons frequenting the Aroma Auction fragrance outlets the Friday before Mother's Day, give or take ## patrons."

(d) Measure the effect size by reporting the coefficient of variation, expressed in percentage