# The Bureau of Transportation Statistics keeps track of all border crossings through ports of entry along the U.S.-Canadian and U.S.-Mexican borders. The data contained in the DATAfile named BorderCrossings show the most recently published figures for the number of personal vehicle crossings (rounded to the nearest 1000) at the 50 busiest ports of entry during the month of August (U.S. Department of Transportation website, February 28, 2013). a. What are the mean and median number of crossings for these ports of entry? b. What are the first and third quartiles? c. Provide a five-number summary. d. Do the data contain any outliers? Show a box plot.

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

#### Solutions

Chapter
Section
Chapter 3.4, Problem 54E
Textbook Problem
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## The Bureau of Transportation Statistics keeps track of all border crossings through ports of entry along the U.S.-Canadian and U.S.-Mexican borders. The data contained in the DATAfile named BorderCrossings show the most recently published figures for the number of personal vehicle crossings (rounded to the nearest 1000) at the 50 busiest ports of entry during the month of August (U.S. Department of Transportation website, February 28, 2013). a. What are the mean and median number of crossings for these ports of entry? b. What are the first and third quartiles? c. Provide a five-number summary. d. Do the data contain any outliers? Show a box plot.

Expert Solution

a.

To determine

Find the mean and median number of crossing for these ports of entry.

### Explanation of Solution

Calculation:

The given information is that the data represent the number of personal vehicle crossings at the 50 busiest ports of entry during the month August.

Software Procedure:

Step by step procedure to obtain the mean and median using the MINITAB software:

• Choose Stat > Basic Statistics > Display Descriptive Statistics.
• In Variables enter the columns Personal...
Expert Solution

b.

To determine

Find the first and third quartiles.

Expert Solution

c.

To determine

Find the five-number summary for the data.

Expert Solution

d.

To determine

Draw the boxplot and check whether there are any outliers.

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