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Percentage distribution and a cumulative percentage distribution

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Ashland MultiComm Services has identified 15 errors attributed to cost of customer service in the past year. Note that cost is given in thousands of dollars. For example, $17.3 represents $17,300. As you did for #1, use the data in the frequency distribution table to construct a percentage distribution and a cumulative percentage distribution. Present your tables side by side with labels in the first row and with the largest percentage first down to the smallest percentage last. Be sure to leave a space between each error category for ease in reading.
Type of Errors Cost $ thousand
Incorrect accessory 17.3
Incorrect address 62.4
Incorrect contact phone 21.3
Invalid wiring 40.8
On-demand programming errors 38.8
Subscription not ordered 20.3
Suspension error 46.8
Termination error 50.9
Website access errors 60.7
Wrong billing 121.7
Wrong end date 40.9
Wrong number of connections 28.1
Wrong price quoted 50.3
Wrong start date 40.8
Wrong subscription type 60.1

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Solution Summary

This solution involves using the data in a frequency distribution table to construct a percentage distribution and a cumulative percentage distribution.

Solution provided by:
Anwesha Ghosh, MSc
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  • MSc, Osmania University
  • MSc, Indian Institute of Technology - Roorkee (I.I.T.-ROORKEE)
  • BSc, Banaras Hindu University
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