# Shared Flashcard Set

## Details

n/a
37
05/04/2010

Term
 factor
Definition
 the thing you are interested in
Term
 interaction
Definition
 one factor is dependent on another
Term
 among-group variation
Definition
 variation due to differences from group to group
Term
 within-group variation
Definition
 considered a random error
Term
 goodness of fit
Definition
 how good a line fits the data points
Term
 test for independence
Definition
 2 or more samples
Term
 test for homogeneity
Definition
 one big sample
Term
 observed frequencies
Definition
 the original numbers that are in the tables for chi square tests
Term
 expected frequencies
Definition
 the numbers that you calculate in chi square tests tables
Term
 nonparametric statistics
Definition
 sample in which the interpretation does not depend on the population fitting any parametrized distributions
Term
 wilcoxon rank sum test
Definition
 a nonparametric test where you add up all the columns of the ranked numbers in a sample
Term
 regression analysis
Definition
 how well a line fits the given data
Term
 correlation analysis
Definition
 how strongly the regression line fits the data
Term
 least-squares method
Definition
 determines the values of b0 and b1
Term
 y
Definition
 dependent variable for the observation
Term
 b0
Definition
 y intercept
Term
 b1
Definition
 slope for the population
Term
 x
Definition
 independent variable for the observation
Term
 standard error of the estimate
Definition
 the standard deviation around the prediction line
Term
 coefficient of correlation
Definition
 used to determine if there is statistical significance between x and y
Term
 coefficient of determination
Definition
 measure the proportion of variation in Y that is explained by the independent variable X
Term
 multiple regression
Definition
 using 2 or more independent variables to predict the value of a dependent variable
Term
 dummy variable
Definition
 allows you to include categorical independent variables as part of the regression model
Term
 net regression coefficient
Definition
 estimates the mean change in Y per unit change in a particular X holding constant the effect of the other X variables
Term
 index number
Definition
 measure the value of an item at a particular point in time
Term
 simple price index number
Definition
 tracks the price of one thing
Term
 aggregate price index
Definition
 tracks the price for a group of things
Term
 laspeyres price index
Definition
 uses the consumption of quantities associated with the base year in the calculation of all price indexes in the series
Term
 consumer price index
Definition
 a measure estimating the average price of consumer goods and services purchased by households
Term
 producer price index
Definition
 measures average changes in prices received by domestic producers for their output
Term
 seasonal index
Definition
 an index for separate sections, like months
Term
 multiplicative model
Definition
Term
Definition
Term
 t
Definition
 trend
Term
 s
Definition
 seasonal
Term
 c
Definition
 cyclical component
Term
 i
Definition
 irregular component
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