Solution Found!
The frequency distribution of order lead time at
Chapter 2, Problem 22E(choose chapter or problem)
The frequency distribution of order lead time at Ecommerce.com from Exercise 18 is repeated below.
\(\begin{array}{cc}
\text { Lead Time (days) } & \text { Frequency } \\
\hline 0 \text { up to } 5 & 6 \\
5 \text { up to } 10 & 7 \\
10 \text { up to } 15 & 12 \\
15 \text { up to } 20 & 8 \\
20 \text { up to } 25 & \underline{7} \\
\text { Total } & 40
\end{array}\)
a. How many orders were filled in less than 10 days? In less than 15 days?
b. Convert the frequency distribution to a cumulative frequency distribution.
c. Develop a cumulative frequency polygon.
d. About 60 percent of the orders were filled in less than how many days?
Questions & Answers
QUESTION:
The frequency distribution of order lead time at Ecommerce.com from Exercise 18 is repeated below.
\(\begin{array}{cc}
\text { Lead Time (days) } & \text { Frequency } \\
\hline 0 \text { up to } 5 & 6 \\
5 \text { up to } 10 & 7 \\
10 \text { up to } 15 & 12 \\
15 \text { up to } 20 & 8 \\
20 \text { up to } 25 & \underline{7} \\
\text { Total } & 40
\end{array}\)
a. How many orders were filled in less than 10 days? In less than 15 days?
b. Convert the frequency distribution to a cumulative frequency distribution.
c. Develop a cumulative frequency polygon.
d. About 60 percent of the orders were filled in less than how many days?
ANSWER:Step 1 of 4
(a) To determine the number of orders that were filled in less than 10 days. We will have to add the frequency of classes 0 -5 and 5 - 10, ie;
6 + 7 = 13
Similarly, to determine the number of orders that were filled in less than 15 days. We will have to add the frequency of classes 0 -5, 5 - 10 and 10 -15 ie;
6 + 7 + 12 = 25