Attributes/characters used to describe or compare the objects under study
What is a variable?
100
-A way to represent a categorical variable in a format compatible with continuous variables
-Uses binary codes
What are dummy variables?
100
-measures the strength of the linear relationship
-ranges from negative infinitive to positive infinitive
What is covariance?
100
% of the variation in Y explained by X's?
What is multiple linear regression?
100
Simultaneous analysis of variance of the effect of two factors
What is a two-way ANOVA?
200
continuous and categorical
What are the types of variables
200
In a population what is the probability that X is less than or equal to Y?
What is the cumulative probability density function?
200
It is the standardized covariance dividing it by the standard deviation
What is Pearson Correlation Coefficient?
200
subtract the mean and divide by the standard deviation
What is standardization?
200
Mean square among/Mean square error
What is an F-ratio?
300
Given a hypothesis is true, what's the probability of obtaining the observed data?
What is the frequentist approach?
300
Is when we randomly shuffle the order of the original data
What is randomization?
300
no relationship
What is r = 0?
300
A regression model that contains an optimal subset of the available predictor variables
What is a parsimonious model?
300
Analysis that determines the variation attributed to each level within a hierarchy
What is a nested ANOVA?
400
summation( (yi - y_bar)^2/ n-1)
What is variance?
400
It is a bar graph that shows how frequently data occur within certain ranges or intervals
What is a histogram?
400
-There is no real functional relationship between X and Y
-X does not explain more of the variability of Y that what we would expect to obtain simply by chance
-What is the null hypothesis in linear regression?
400
There is no difference in mean values among groups
What is the null hypothesis in a ANOVA?
400
False positive, when the null hypothesis is true but we reject it
What is type I error?
500
It is the likelihood you obtained the observed results simply by chance
What is a p-value?
500
It is when we resample original data with replacement
What is bootstrap?
500
X explains 100% of the variation in Y
What is R^2 = 1?
500
The portion of the variability of the response variable that's accounted for by the ANOVA Treatment Factor?
What is Sum of Squares Among?
500
The long-run probability of detecting the presence of a real effect with our samples