Exam 11: Analysis of Quantitative Data

Define the following terms -multiple regression

Define the following terms -z-score

Define the following terms -linear relationship

Define the following terms -code sheet

Define the following terms -bimodal

Define the following terms -statistical significance

$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Statistics for Three Neighborhoods }$ GLENBROOK MEADOWBROOK ELMBROOK Income Education Income Education Income Education Mean \ 78,000 17 Years \ 28,000 15 Years \ 16,000 11 Years Median \ 27,000 18 \ 28,000 16 \ 18,000 11 Mode \ 26,000 20 \ 28,000 11 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$ -Which neighbourhood(s)has a small number of very high income people and a greater proportion of families earning $26,000?

Define the following terms -normal distribution

Define the following terms -histogram

Refer to the information in the following table when answering questions 32 and 33: Education Level of Offender Level of Violence 0-8 Yrs 9-12 Yrs 13-16 Yrs 17+ Yrs High 80\% 40\% 10\% 5\% Medium 10\% 50\% 20\% 10\% Low 10\% 10\% 70\% 85\% Total 100\% 100\% 100\% 100\% () (400) (500) (300) (200) -What type of relationship exists between level of violence and level of education?

Define the following terms -percentile

Describe,as simply as possible,what is meant by the statement "It is statistically significant at the 0.05 level."

Define the following terms -marginals

Among the violent offenders in the following table,what is the ratio of males to females? TYPE OF CRIME Male Female Violent 20\% 10\% Property 80\% 90\% 100\% 100\% (800) (400)

Define the following terms -Type I error

Refer to the information in the following table when answering questions 18 to 26: $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Statistics for Three Neighborhoods }$ GLENBROOK MEADOWBROOK ELMBROOK Income Education Income Education Income Education Mean \ 78,000 17 Years \ 28,000 15 Years \ 16,000 11 Years Median \ 27,000 18 \ 28,000 16 \ 18,000 11 Mode \ 26,000 20 \ 28,000 11 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$ -Which neighbourhood(s)has an income distribution resembling a skewed curve?

Define the following terms -univariate statistics

Define the following terms -descriptive statistics

Refer to the information in the following table when answering questions 18 to 26: $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Statistics for Three Neighborhoods }$ GLENBROOK MEADOWBROOK ELMBROOK Income Education Income Education Income Education Mean \ 78,000 17 Years \ 28,000 15 Years \ 16,000 11 Years Median \ 27,000 18 \ 28,000 16 \ 18,000 11 Mode \ 26,000 20 \ 28,000 11 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$ -Which neighbourhood(s)has the 50th percentile of education as a college education? $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Statistics for Three Neighborhoods }$ GLENBROOK MEADOWBROOK ELMBROOK Income Education Income Education Income Education Mean \ 78,000 17 Years \ 28,000 15 Years \ 16,000 11 Years Median \ 27,000 18 \ 28,000 16 \ 18,000 11 Mode \ 26,000 20 \ 28,000 11 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$

Define the following terms -precision