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33 Cards in this Set
 Front
 Back
coefficient of determination

Goodness of fit measure for a regression model


coefficient of variation

Standard deviation divided by the mean


correlation coefficient

Comovement indicator for two variables


cross section

Data from a common point in time


degrees of freedom

Number of observations beyond the minimum required to calculate a statistic


dependent variable

Y value contingent upon other separately determined X values


deterministic relation

Relation known with certainty


F statistic

Offers evidence if explained variation in Y is significant


hypothesis test

Statistical experiment


independent variable

X value determined separately from the process used to create Y


linear model

Straightline relation


mean

Average


median

“Middle” observation


mode

Most common value


multiple regression model

Relation with one dependent Y variable and more than one independent X variable


multiplicative model

Loglinear relation


population parameters

Summary and descriptive measures for the population


population standard deviation

Square root of the population variance


population variance

Average squared deviation from the overall mean


range

Scope from largest to smallest observations


sample standard deviation

Square root of the population variance


sample statistics

Summary and descriptive measures for a sample


sample variance

Average squared deviation from the sample mean


simple regression model

Relation with one dependent Y variable and one independent X variable


skewness

Lack of balance


standard error of the estimate

Standard deviation of the dependent Y variable after controlling for all X variables


statistical relation

Inexact relation


symmetrical

Balanced distribution


t statistic

Approximately normal test statistic


time series

Daily, weekly, monthly or annual sequence of data


Type I error

Incorrect rejection of a true hypothesis


Type II error

Failure to reject a false hypothesis


z statistic

Normally distributed test statistic with zero mean and standard deviation of one
