Mathematics, 27.08.2020 20:01 jmallory3031
The owner of an automobile repair shop studied the waiting times for customers who arrive at the shop for an oil change. The following data with waiting times in minutes were collected over a one-month period.2 5 10 124 4 5 1711 8 9 812 21 6 87 13 18 3(a) Develop a frequency distribution using classes of 0-4, 5-9, 10-14, 15-19, and 20-24.Class Frequency0-4 5-9 10-14 15-19 20-24 Total (b) Develop a relative frequency distribution using the classes in part (a). If required, round your answers to two decimal places. Class Relative Frequency0-4 5-9 10-14 15-19 20-24 Total (c) Develop a cumulative frequency distribution using the classes in part (a).(c) Develop a cumulative frequency distribution using the classesClass Cumulative Frequency0-4 5-9 10-14 15-19 20-24 (d) Develop a cumulative relative frequency distribution using the classes in part (a). If required, round your answers to two decimal places. Class Cumulative Relative Frequency0-4 5-9 10-14 15-19 20-24 (e) What proportion of customers needing an oil change wait 9 minutes or less?%
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The owner of an automobile repair shop studied the waiting times for customers who arrive at the sho...
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