Stop-One.com, 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 Time (days) Frequency 0 to under 3 5 3 to under 6 13 6 to under 9 11 9 to under 12 25 12 to under 15 4

Total 58

a. How many orders were studied?

b. What is the midpoint of the second class? (Round the final answer to 1 decimal place.)

c. What are the coordinates of the last class for a frequency polygon assuming we draw a frequency polygon using the midpoints? (Round the final x value to 1 decimal place and y value to whole number.)

x = , y =

d. Not available in Connect.

e. Not available in Connect.

f. Interpret the lead times.

Most orders take around (Click to select) days.

as soon as possible please