stats 8 Flashcards
slope (m)=
rise/run
Rise
The change in y for a given change in x
Run
The change in x. It represents how much x increases or decreases,
which is typically by one unit when calculating the slope
in statistics, a parameter is
the value of an unknown population
characteristic
population regression line
the value of the dependent variable (y) is conditional on one or more independent variable
the population regression line is interpreted as
the baseline or starting point of the dependent variable
the population regression line is free from
of any influence from the independent variable
The impact of a one-unit increase of the independent variable and dependent variable is also known as
effect size
intercept
alpha
slope
beta
stochastic component
sample regression model
if u know alpha and beta you can predict value of y
parameter estimates
systematic components
explains predictable relationship between ind and dep relationship
residuals
population error term
sample error term
OLS regression
covariation
goodness-of-fit
root mean-squared error (RMSE)
R2 statistic
residual sum of squares
total sum of squares
model sum of squares
error variance
confidence intervals
t-ratio
