Copy (2) of Quiz_1.Spring_2011.Solution

# Copy (2) of Quiz_1.Spring_2011.Solution - SPRING2011 QUIZI...

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PAD 4704 - APPLIED STATISTICS  SPRING 2011 QUIZ I Student Name: ________________________________ PID:   ________________________________ Section I  measures your ability in understanding basic statistical concepts. Each of the following questions is worth 10 points: 1. Identify the following variables by their level of measurement: crime rate:  low; medium; high - Ordinal income:   \$10,000; \$20,000; \$35,000; \$53,000 - Ratio college dropout rate :15.7%; 23.8%; 19.67%; 31.5% - Interval marital status:  single; married; living with someone; divorced; separated;  widowed -  Nominal race:  African-American; Hispanic; White; Asian; other - Nominal 2. Briefly describe the relationship between independent and dependent variables. Please  provide one example. 1

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Independent and dependent variables are related to one another.  The Independent part  is what you, the experimenter, changes or enacts in order to do your experiment.  The  dependent variable is what changes when the independent variable changes - the  dependent variable  depends  on the outcome of the independent variable. Imagine that we wished to know whether listening to music would increase productivity in the  workplace.  We randomly assign each participant in this experiment to either an experimental  condition or a control condition.  In the experimental condition, participants listen to music while  they work.  In the control condition, the participants do not listen to music while they work.  In  this example, listening to music vs. not listening to music is the independent variable.   The  dependent variable in this example is productivity. 3.
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• Spring '08
• STAFF
• 99, continuous variable, Country Netherlands New Zealand Norway Portugal Spain Sweden Switzerland, Country Australia Austria Belgium Canada Denmark Finland

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Copy (2) of Quiz_1.Spring_2011.Solution - SPRING2011 QUIZI...

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