4.6 On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for dinner for 28 four-person tables.

4.6 On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for dinner for 28 four-person tables..

4.6 On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for
dinner for 28 four-person tables.

(a) Use Excel or MegaStat to find the mean, median, and mode.
(b) Do these measures of central tendency agree? Explain.
(c) Are the data symmetric or skewed? If skewed, which direction?
(d) Note strengths or weaknesses of each statistic of central tendency for the data.

95 103 109 170 114 113 107
124 105 80 104 84 176 115
69 95 134 108 61 160 128
68 95 61 150 52 87 136

4.16 Prof. Hardtack gave four Friday quizzes last semester in his 10-student senior tax accounting
class.

(a) Using Excel, find the mean, standard deviation, and coefficient of variation for each quiz.
(b) How do these data sets differ in terms of central tendency and dispersion?
(c) Briefly describe and compare student performance on each quiz.

Quiz 1: 60, 60, 60, 60, 71, 73, 74, 75, 88, 99
Quiz 2: 65, 65, 65, 65, 70, 74, 79, 79, 79, 79
Quiz 3: 66, 67, 70, 71, 72, 72, 74, 74, 95, 99
Quiz 4: 10, 49, 70, 80, 85, 88, 90, 93, 97, 98

4.6 On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for dinner for 28 four-person tables.

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