Exam 20: Data Analysis: Analyzing Multiple Variables Simultaneously

Given a cross tabulation between years of education and income,we would compute percentages in the direction of years of education because

The error term in the regression model represents all factors that determine criterion variable that are not part of the model.

If you have a significant and very strong (e.g. ,> 0.90 correlation coefficient),you may assume there is a causal relationship between the two variables.

A(n)____________________ is used to derive an equation that relates a single continuous dependent variable to two or more independent variables.

____________________ is a condition said to be present in a multiple regression analysis when the independent variables are correlated among themselves.

In multiple regression analysis,t tests are used to test for the statistical significance of betas.If a beta is insignificant,it means that its respective independent variable plays no meaningful role in predicting the dependent variable and the independent variable should be "removed" from the model.

In a regression analysis,determining the statistical significance of the slope involves the use of the t-statistic.

Which of the following is FALSE about cross tabulations?

Which of the following emphasizes the division of the sample into subgroups so as to learn how the dependent variable varies from subgroup to subgroup?

Suppose you were given an example of running a chi-square test using SPSS.The output shows a "Pearson Chi-Square" value of 82.123,df = 3 and the Asymp.Sig.= 0.000.This means

Multicollinearity is said to be present in a regression problem if the criterion variables are independent.

Which of the following statements about regression/correlation analysis is FALSE?

Which of the following concerning the Pearson chi-square test is FALSE?

If an organization selects two towns for a market study (one for the test and the other as a control)and measures the amount of trash in pounds per household,it must first determine the equality of the two towns using a

A statistic used to measure the strength of relationship between categorical variables is called a(n)____________________.

An analyst has a set of normally distributed intervally scaled data resulting from two observations on the same sample of subjects,and he wishes to investigate if there is any difference in these two means.The appropriate statistical procedure is

The NFL office discovered data covering attendance at professional football games in the late 1940s and early 1950s.The game with the highest attendance was between the St.Louis Cardinals and the New York Giants.The office also found considerable information that someone had collected on each game day such as the level of GDP,the DOW,numbers of persons employed,number of new businesses formed during the week preceding the game,and the population.A student intern took the information and built a regression model to predict game attendance for the upcoming season.The model should

Analysis of variance (ANOVA)is most applicable when there

Which statistical technique should you use when you are attempting to answer the question: "Is there a significant relationship between the customers' disposable income (measured in dollars)and their repeat-buying behavior (measured by the number of rebuys in a twelve-month period)?"

The simple regression technique in SPSS,not the researcher,specifies which variable should be the independent variable and which one should be the dependent variable.