Exam 15: Testing for Differences Between Groups and for Predictive Relationships

To use the chi-square test, both variables in a 2 x 2 contingency table must be measured on a ratio scale.

The null hypothesis for an ANOVA test comparing the means of three groups is: $\mu$ 1 = $\mu$ 2 = $\mu$ 3.

Which analysis is portrayed by the equation: Y = bo + $\beta$ 1X1 + $\beta$ 2X2 + $\beta$ 3X3... + $\beta$ nXn?

In the regression equation, Y = a + $\beta$ X , $\beta$ is the ____.

The equation, Y = a + $\beta$ X, is the equation for the ____.

Consider the regression equation: Y = 98.3 +.35X1 + 22.3X2, the predicted value for Y when X1 = 3 and X2 = 5 is ____.

Jamal is analyzing data and his current focus centers on how strongly interrelated the independent variables in his model are. Jamal is concerned about ____.

Mulitvariate dependence techniques are variants of the general linear model (GLM).

____________________ in regression analysis refers to how strongly interrelated the independent variables in a model are.

Several dummy variables can be included in a regression model.

If the purpose of the regression analysis is forecasting, then standardized regression estimates are most appropriate.

In using the t-test to compare the means of two groups, the alternative hypothesis is typically stated as ____.

____________________ is the appropriate test to use when comparing the means of three or more groups to see if they are significantly different from one another.

Multivariate dependence techniques are variants of the ____________________.

Multivariate statistical analysis permits the researcher to consider more than one dependent variable at the same time.