Exam 18: Analysis and Interpretation: Multiple Variables Simultaneously

Suppose that the relationship between sales (Y,in $000)and number of salespeople (X)is represented by the following regression equation: Y = 105.2 + 35.8X.What will be the average contribution to sales of one additional salesperson?

Which of the following statements about the interpretation of correlations is NOT true?

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?

Which of the assumptions listed below are necessary in order for the coefficients in a partial regression equation to be interpreted as the average change in the criterion variable associated with a unit change in the appropriate predictor variable holding other predictor variables constant?

A brand product manager needs to know if men and women hold different attitudes about her product.What test should the brand product manager use?

A simple regression is a statistical technique used to derive an equation that relates a single continuous dependent variable to two or more independent variables.

A research study involving the research question: "On the basis of a survey of husband-wife house-holds,is there a significant difference between the mean attitude score of husbands and that of wives toward our product?" will involve a test

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,number 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

A series of cross-tabulations between an outcome variable and several possible causal variables presented in a single table on a single page is known as a(n)

A researcher is interested in comparing the usage of bank debit cards by consumers in rural (r)and urban (u)areas.Each year for the past five years,she has surveyed 500 individuals (one-half urban,one-half rural)randomly selected from across the United States.She is specifically interested in any differences that may exist between the two groups with regard to usage.The results of the current study indicate that people in urban areas use bank debit cards 12 times per month on average,while those in rural areas use bank cards 10 times per month on average.Given that the critical value that the test statistic is to be compared with is equal to 1.645 at a 90% significance level,which of the following statements are true?

Let's assume there are sophomores,juniors,and seniors in your marketing research class and we want to know if their average GPAs differ.What is the proper statistical test?

The manager of the New England Patriots conducted a large survey.He wanted to know if there was an association between fans being "season ticket holders" vs."non-season ticket holders" and whether they "bought" vs."didn't buy" team merchandise at the game.Because his survey included these measurements,he used SPSS to run a Pearson correlation coefficient that turned out to be 0.88 with a Sig.value of .001.This meant there is a significant relationship.

Which of the following statements about the Pearson chi-square test of independence is NOT true?

If the correlation between two variables x and y is equal to −0.90,which of the following is TRUE?

Which statistical technique should you use to answer the question: "Is there a significant relation-ship between education level (a four-category ordinal variable)and whether or not consumers are aware that Firestone is a brand of tires?"

The most used multivariate data analysis technique in applied marketing research is

Assuming the two predictors X1 and X2 are not correlated,the coefficients of partial regression can be interpreted as the

An analyst has a set of normally distributed internally 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

A popular approach to measuring the strength of the relationship between two categorical variables is

Olive Garden restaurants know that customers drink beverages for lunch and alcoholic drinks at supper.This is an example of an associative type of relationship.