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Economics

Some days of the week are more dangerous than others, according to Traf?c Safety Facts produced by the National Highway Traf?c Safety Administration. The average number of fatalities per day for each day of the week are shown in the accompanying table.

Average Fatalities per Day (day of the week)

	Mon	Tue	Wed	Thurs	Fri	Sat	Sun
1978-1982	103	101	107	116	156	201	159
1983-1987	98	96	99	108	140	174	140
1988-1992	97	94	97	106	139	168	135
1993-1997	97	93	96	102	129	148	127
1998-2002	99	96	98	104	129	149	130
Total	99	96	100	107	138	168	138

a. Using the midpoint of each year range (e.g., 1980 for the 1978-1982 range), construct a time-series plot that shows the average fatalities over time for each day of the week. Be sure to label each line clearly as to which day of the week it represents.

b. Write a sentence or two commenting on the difference in average number of fatalities for the days of the week. What is one possible reason for the differences?

c. Write a sentence or two commenting on the change in average number of fatalities over time. What is one possible reason for the change?

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Microeconomics, Economics

Category:- Microeconomics
Reference No.:- M91724062

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