Extras Flashcards
If the t statistic does not fall in the critical region we
do not reject the null hypothesis (accept it)
In a hypothesis test for ANOVA you are interested in the significance of the difference between
population means
What is the null hypothesis for ANOVA
H0= all population means are equal
What is the alternative hypothesis for ANOVA
H1= at least one of the population means is different
A higher f-ratio indicates a _____ variance between categories rather them within categories. This proves against that there is ____ between the means
larger
no difference
What is the relationship between the coefficient of determination and the proportion of variance explained by the relationship between two variabilities
The coefficient of determination is the proportion of variation explained by the relationship between two variabilities
A variable whose value is held constant so that the researcher can explore the relationship between two other variables
control variable
Each statisticsl method that uses the least square method to produce an equation to predict the z-score of one variable using the Z score of two or more variables
Standardized multiple regression
The Y variable and a multiple regression whose value is being predicted by two or more independent X variables
Dependent variable
Partial slopes computed in a standardized multiple regression the slopes can be compared to make statements about which dependent variables are more influential on the independent variable
Beta weights
A value value that describes a percentage of variability in the dependent variable that is explained by two or more independent variables
Coefficient of multiple determination
A measure of the relationship between two variables without consideration of any other variables
Zero order correlation
A statistical method that uses the least squares method to produce an equation to predict the value of one variable using the values of two or more other other variables
Multiple regression
A concept use in multiple regression and partial correlation to indicate that the effect of one independent variable on the dependent variable is different, depending on the the value of another independent variable
Interaction
A value that describes the correlation between the dependent variable and two are more independent variables
Multiple correlation coefficient