Project #5699 - Statistics

Question #1

Sixteen prisoners completed a questionnaire that measured their attitudes towards interpersonal violence. Respondents who scored high believed that in many situations, a person could legitimately use physical force against another person. Respondents who scored low believed that in no situation could the use of violence be justified.

 

52

47

53

23

17

63

19

66

20

66

10

82

8

91

75

32

 

 

 

 

 

1.       Calculate the following statistics for this sample of prisoners:

 

                                             i.            Mean

                                            ii.            Median

                                          iii.            Mode

                                          iv.            Range

                                           v.            Average Deviation

                                          vi.            Variance

                                        vii.            Standard deviation

 

 

 

 

Question #2

The following table describes incarceration rates of the United States’ population for a selected number of years:

 

Year

Rates of Incarceration

1972

1975

1978

1981

1984

1987

1990

1993

1996

 

75.6

91.5

113.4

132.5

163.8

195.7

98.93

117.39

136.08

 

                                                               i.      What is the mean and standard deviation of incarceration rates over this time period?

                                                              ii.      What happens to the mean of incarceration rates when we add the years 1999 (rate = 378.6) and 2002 (rate = 390.5)? Which measure of central tendency would you use to describe the 1972–2002 distribution and why? What will be the value (i.e. number) of that measure of central tendency

Subject Mathematics
Due By (Pacific Time) 05/07/2013 02:00 pm
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