1. Describing Data: Frequency Distribution and Graphic Presentations:
You are the parts manager for a local Dumb Phone Repair Shop. You notice that it is taking more than 10 days for parts to be shipped to your store. Therefore you decide to sample the next 50 orders and track the days it takes from ordering to arrival. Your assistant hands you the following info:
Number of Days from order date to arrival in El Paso.
5 10 12 15 20 3 4 5 1 12
9 19 20 24 16 21 20 15 13 9
5 1 2 3 17 21 14 8 6 21
3 6 7 15 19 5 7 9 22 23
12 11 10 14 16 13 14 10 7 4
a. Determine the Number of Classes
b. Determine the Interval of Classes
c. Construct a frequency distribution using the following format
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Classes
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Tally
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Frequency(f)
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Cumulative Frequency (Cf)
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d. Use graph paper or an excel program to plot the Histogram for this data.
e. On a separate graph draw and label the Cumulative Frequency Polygon.