1.USA Today (December 13, 1998) reported on a study of the automobilespurchased by women in 1998. The data in the study consisted of a description of the top five automobiles purchased: Ford Escort (FE), Honda Accord (HA), Chevrolet Cavalier (CC), Ford Taurus (FT), and Hyundai Excel (HE). The actual study summarized the purchases of several thousand women. Let us assume that the data shown below represent a sample of 50 women who purchased one of these five cars.

Summarize these data with ALL appropriate statistical methods (by hand or any statistical software) and provide verbal statements/discussions of the summaries about the model of the cars.

HAFEFTFTCCHA

HAFEFTHAHE HE

FTHECCFTFEFE

HACCCCFEFECC

HAHAHEFTCCCC

HAHEHEHAFEFE

FEHAHECCCCFT

HEFEFECCHAFTFTFE

4.If the z-score for an observation is -1.22, the mean of the data set is 83, and the variance is 84, what is the value of the observation?

6.Todd Booth, an avid jogger, kept detailed records of the number of miles he ran per week during the past year. The frequency distribution in figure below summarizes his records. Find the mean, median, and mode of the number of miles per week that Todd ran.

Miles Run per Week Number of Weeks

1. 0 4
2. 1 5
3. 2 10
4. 3 9
5. 4 10
6. 5 7
7. 6 4
8. 7 3

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a. Mean number of miles =

b. Median number of miles =

c.Modenumber of miles=