# Calculating Z scores for the depenent and independent variables

Calculate Z scores for the dependent and independent variable values in the two hypotheses below. This will require calculating the standard deviation and converting the scores to Z scores.

Hypothesis: 1

(population per 100,000

ROBBERY ARRESTS CONVICTIONS

44 3

50 6

38 8

96 12

42 14

47 18

40 22

39 28

46 32

50 40

MEAN = 49.2 MEAN=18.3

MEDIAN = 45 MEDIAN =16

MODE =50 MODE=

N=10 N=10

Hypothesis: 2

DRUNK DRIVING ARRESTS 2005 Convictions

Jan: 50 40

Feb: 60 50

March: 70 60

April: 80 74

May: 90 80

June: 110 90

July: 120 100

August: 130 115

September: 150 150

October: 200 160

November: 250 240

December: 300 300

MEAN: 134.12 MEAN:121.6

MEDIAN: 115 MEAN; 95

https://brainmass.com/statistics/statistical-theory/calculating-scores-depenent-independent-variables-564737

#### Solution Summary

The solution gives detailed steps on calculating Z scores for the depenent and independent variables. All works are done in excel.