5 Written Questions

1. a straight line that describes how a response variable changes as an explanatory changes
2. when the effects on a response variable cannot be distinguished from multiple variables
3. is used to measure spread by looking at how far observations are from the mean; the square of the standard deviation
4. a study in which a person deliberately imposes a treatment on individuals in order to compare their responses to different treatments or levels of treatment
5. a subset or portion of a larger population selected to represent that population

5 Matching Questions

1. Double Blind Experiment
2. Explanatory variable
3. Convenience sampling
4. Categorical Variable
5. Bias

1. a selects individuals for a survey based on their availability without randomization
2. b a variable used in a statistical model to explain or predict the values of a response variable
3. c records into which of several categories or levels an individual falls, usually attributed to characteristicsa
4. d a consistent overstatement or understatement of the true value of the property measured
5. e an experiment in which neither the subject nor the the people who work with them know which treatment each subject is receiving.

5 Multiple Choice Questions

1. the entire collection of individuals about whom we would like to obtain information
   1. Population
   2. Placebo:
   3. Correlation
   4. Quartile
2. the objects described by a set of data
   1. Median
   2. Bias
   3. Individuals
   4. Census
3. a variable that has an important effect on the relationship among the variables in a study but is not one of the explanatory variables studied
   1. Lurking Variable
   2. Explanatory variable
   3. Categorical Variable
   4. Variance
4. a value that deviates from the others in a data set
   1. Range
   2. Outlier
   3. Valid
   4. Bias
5. individuals are selected from a population by chance in an attempt to reduce bias and make the sample representative of the population
   1. Standard Score
   2. Range
   3. Random sample
   4. Sample

5 True/False Questions

1. Block design → design in an experiment in which blocks of similar subjects are assigned treatments at random

   True        False

2. Emprical Rule → a bell-shaped, unimodal, symmetric shape depicting the density curve of the normal distribution

   True        False

3. Box Plot → a subset or portion of a larger population selected to represent that population

   True        False

4. Mean → the average of a collection of values

   True        False

5. Quantitative Variable: → records into which of several categories or levels an individual falls, usually attributed to characteristicsa

   True        False