# Shared Flashcard Set

## Details

Reaserch Methods 2
Research methods 2
8
Accounting
05/30/2012

Term
 Central Limit Theorem (CLT)
Definition
 All averages of many samples will lead to a bell shaped curve. Taking samples of a parent population and plotting the frequency distribution of sample means.
Term
 Sampling Distribution
Definition
 Theoretical distributions that describe the relationship between population samples. Provides the information necessary for making inferences. Provides the information to predict where a sample is located in the population.
Term
 Standard normal disributions
Definition
 Bell shaped curve. Unseful to analyze models with normal distribution, unimodal and roughly symetric shapes.
Term
 z-score
Definition
 Standerdized value measuring how far away from the mean a certain value is using standerd deviation as a ruler. A value that is 1.5 sd above the mean will have a z-score of 1.5.
Term
 68, 95, 99.7% rule
Definition
 NORMAL DISTRIBUTION 68% of the samples lie 1sd away from the mean 95% lie 2sd away from the mean 99.7% lie 3sd away from the mean
Term
 Contingency Table
Definition
 Explanatory variable (ex gender) as row variable, resopnse varible (alcohol consumtion as colum variable.
Term
 Conditional percentages
Definition
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