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A chain of sport shops catering to beginning skiers,
Chapter 2, Problem 37E(choose chapter or problem)
A chain of sport shops catering to beginning skiers, headquartered in Aspen, Colorado, plans to conduct a study of how much a beginning skier spends on his or her initial purchase of equipment and supplies. Based on these figures, it wants to explore the possibility of offering combinations, such as a pair of boots and a pair of skis, to induce customers to buy more. A sample of cash register receipts revealed these initial purchases:
\(\begin{array}{|rrrrrrrrr|}
\hline \$ 140 & \$ 82 & \$ 265 & \$ 168 & \$ 90 & \$ 114 & \$ 172 & \$ 230 & \$ 142 \\
86 & 125 & 235 & 212 & 171 & 149 & 156 & 162 & 118 \\
139 & 149 & 132 & 105 & 162 & 126 & 216 & 195 & 127 \\
161 & 135 & 172 & 220 & 229 & 129 & 87 & 128 & 126 \\
175 & 127 & 149 & 126 & 121 & 118 & 172 & 126 & \\
\hline
\end{array}\)
a. Arrive at a suggested class interval. Use six classes, and let the lower limit of the first class be $70.
b. What would be a better class interval?
c. Organize the data into a frequency distribution using a lower limit of $80.
d. Interpret your findings.
Questions & Answers
QUESTION:
A chain of sport shops catering to beginning skiers, headquartered in Aspen, Colorado, plans to conduct a study of how much a beginning skier spends on his or her initial purchase of equipment and supplies. Based on these figures, it wants to explore the possibility of offering combinations, such as a pair of boots and a pair of skis, to induce customers to buy more. A sample of cash register receipts revealed these initial purchases:
\(\begin{array}{|rrrrrrrrr|}
\hline \$ 140 & \$ 82 & \$ 265 & \$ 168 & \$ 90 & \$ 114 & \$ 172 & \$ 230 & \$ 142 \\
86 & 125 & 235 & 212 & 171 & 149 & 156 & 162 & 118 \\
139 & 149 & 132 & 105 & 162 & 126 & 216 & 195 & 127 \\
161 & 135 & 172 & 220 & 229 & 129 & 87 & 128 & 126 \\
175 & 127 & 149 & 126 & 121 & 118 & 172 & 126 & \\
\hline
\end{array}\)
a. Arrive at a suggested class interval. Use six classes, and let the lower limit of the first class be $70.
b. What would be a better class interval?
c. Organize the data into a frequency distribution using a lower limit of $80.
d. Interpret your findings.
ANSWER: