Module 1: Overview of Statistics

Question 1

Sampling unit

Answer 1

-unit being selected at random (email address)

Question 2

Sample

Answer 2

-collection of sampling units that you randomly selected (72 email addresses)

Question 3

Observation unit

Answer 3

-scale for data collection/subject of the study (individual person)

Question 4

Statistical population

Answer 4

-collection of all sampling units that could have been in your study (all people in toronto with an email address)

Question 5

Population of interest

Answer 5

-collection of sampling units that you hope to draw a conclusion about, defined by scope of your research question

Question 6

Measurement variable

Answer 6

-what we want to measure about the observation unit (height, age, voting intent)

Question 7

Measurement unit

Answer 7

-scale of the measurement variable (cm, year), if the data are categorical there is no measurement unit

Question 8

Descriptive statistics

Answer 8

-characterize the data in your sample (averages, tables, graphs)

Question 9

Inferential statistics

Answer 9

-use info from your sample to make a probabilistic statement about a statistical population

Question 10

4 steps of overall framework

Answer 10

-sampling (creating study and collecting samples)
-measuring (taking measurements from observation units)
-calculating descriptive statistics (describe data in your sample)
-calculating inferential statistics (use info in data to draw a conclusion about the statistical population)