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Every year, the U.S. Coast Guard collects data and compiles statistics on reported recreational boating accidents. These statistics are derived from accident reports that are filed by the owners/operators of recreational vessels involved in accidents. In 2009, 4730 recreational boating accident reports were filed. Figure 1.8 provides a bar chart summarizing the number of accident reports that were filed each month (U.S. Coast Guard’s Boating Safety Division website, August 2010). a. Are the data categorical or quantitative? b. Are the data time series or cross-sectional? c. In what month were the most accident reports filed? Approximately how many? d. There were 61 accident reports filed in January and 76 accident reports filed in December. What percentage of the total number of accident reports for the year were filed in these two months? Does this seem reasonable? e. Comment on the overall shape of the bar graph. FIGURE 1.8 NUMBER OF RECREATIONAL BOATING ACCIDENTS

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STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884
BuyFind

STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

Solutions

Chapter
Section
Chapter 1, Problem 15SE
Textbook Problem
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Every year, the U.S. Coast Guard collects data and compiles statistics on reported recreational boating accidents. These statistics are derived from accident reports that are filed by the owners/operators of recreational vessels involved in accidents. In 2009, 4730 recreational boating accident reports were filed. Figure 1.8 provides a bar chart summarizing the number of accident reports that were filed each month (U.S. Coast Guard’s Boating Safety Division website, August 2010).

  1. a. Are the data categorical or quantitative?
  2. b. Are the data time series or cross-sectional?
  3. c. In what month were the most accident reports filed? Approximately how many?
  4. d. There were 61 accident reports filed in January and 76 accident reports filed in December. What percentage of the total number of accident reports for the year were filed in these two months? Does this seem reasonable?
  5. e. Comment on the overall shape of the bar graph.

  FIGURE 1.8 NUMBER OF RECREATIONAL BOATING ACCIDENTS

Chapter 1, Problem 15SE, Every year, the U.S. Coast Guard collects data and compiles statistics on reported recreational

Expert Solution

a.

To determine

Identify if the data are categorical or quantitative.

Explanation of Solution

The U.S. Coast Guard collects the data on the recreational boating accidents. In the year 2009, the accidents were noted as 4,730.

Categorical variable:

Labels or names that are used to recognize the attributes of each element are called categorical data. In other words, the data can be grouped under specific categories. Hence, a variable with categorical data is called categorical variable...

Expert Solution

b.

To determine

Identify whether the data are time-series or cross sectional.

Expert Solution

c.

To determine

Identify the month that has more accidents and find the approximate number of accidents.

Expert Solution

d.

To determine

Find the percentage of total accidents recorded in the months of January and December.

Interpret if this is reasonable or not.

Expert Solution

e.

To determine

Interpret the overall shape of the bar graph.

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