Statistics And Economics Question

NRF/Big research provided results of a consumer holiday spending survey (USA Today, December 20, 2005). The following data provide the dollar amount of holiday spending for a sample of 25 consumers.

1200 850 740 590 340
450 890 260 610 350
1780 180 850 2050 770
800 1090 510 520 220
1450 280 1120 200 350

 

a. What is the lowest holiday spending? Highest?

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b. Use a class width of $250 to prepare a frequency distribution and a percent frequency

c. Prepare a histogram and comment on the shape of the distribution

d. What observation can you make about holiday spending?

The Nielsen Home Technology Report provided information about home technology and it usage. The following data are the hours of personal computer usage during one week for a sample of 50 persons.

4.1 1.5 10.4 5.9 3.4 5.7 1.6 6.1 3.0 3.7
3.1 4.8 2.0 14.8 5.4 4.2 3.9 4.1 11.1 3.5
4.1 4.1 8.8 5.6 4.3 3.3 7.1 10.3 6.2 7.6
10.8 2.8 9.5 12.9 12.1 0.7 4.0 9.2 4.4 5.7
7.2 6.1 5.7 5.9 4.7 3.9 3.7 3.1 6.1 3.1

 

Summarize the data by constructing the following:

a. A frequency distribution (use a class width of 3 hours)

b. A relative frequency distribution

c. A histogram

d. An Ogive

e. Comment on what the data indicate about personal computer usage at home