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Homework answers / question archive / 1) Ecommerce a large internet retailer is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders

1) Ecommerce a large internet retailer is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders

Statistics

1) Ecommerce a large internet retailer is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days

Lead Times (days)                                                            Frequency

0 up to 5                                                                              6

5 up to 10                                                                            7

10 up to 15                                                                          12

15 up to 20                                                                          8

20 up to 25                                                                          7

a.

How many orders were studied?

 

b.

What is the midpoint of the first class? (Round your answer to 1 decimal place.)

 

c. 

What are the coordinates of the first class for a frequency polygon assuming we draw a frequency polygon using the midpoints? (Round your answer to 1 decimal place.)

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