Exam 14: More Powerful Statistical Methods

Examining data from a customer survey, the researcher analyzes groups of customers by the number of times they've visited and again by the number of times the customers ate out at all. This is called:

In a regression output in SPSS, R² represents:

One of the key assumptions of regression analysis is that independent variables are_____________________.

The coefficient of determination is used in correlation analysis.

In the multiple regression formula, which of the following represents the dependent variable?

Researchers use _______________ when their goal is to examine the relationship between two or more predictor variables and on dependent variables.

A company that is trying to determine which 3 distinct target markets to focus its marketing efforts on might use which statistical tool?

Bivariate statistical techniques are often used to establish cause and effect relationships between two or more variables.

Inference that Coca Cola sales declined when the formula changed is an example of:

______________ is a measure of the percentage of the variation in the dependent variable that is explained by the variation in the independent variables.

Given the Correlation Matrix below, answer questions Assume that respondents answered the questions with ratio scale responses. -An analyst is trying to group together persons who attend theatre performances and who prefer a dinner to accompany the theatre performance. Hence, the two pieces of information are 1) frequency of attending theatre performances and 2) preference for a dinner-theatre format. What type of analysis should be undertaken to determine if those persons preferring the dinner-theatre format are those who attend theatre performances more frequently?

Cluster analysis is useful for clustering groups of questions together into factors.

An advertising agency has been doing work for a client selling widgets. The three-month campaign has produced a low correlation between advertising expenditures and sales for its client. Hence, the client is considering firing the ad agency. The ad agency counters that consumer sales are not a fair assessment of the effectiveness of the ad campaign after only three months. They counter with an analysis of advertising expenditures in relation to number of requests for information about the widgets; number of distributors stocking widgets; and number of retailers requesting shipments of widgets. The ad agency has a database with such information. What kind of analysis would best assist the ad agency in making their case for the effectiveness of their ad campaign?

The coefficient of determination is normally associated with which of the following multivariate procedures?

The dependent variable is also called the __________________.

A client wanted to know which preventive health care information (PHC) sources were related to each other. The following table has factor loadings for 10 types of preventive health care information using a Varimax rotation. Based on the table of results below, what would you tell your client?

Data mining typically involves four classes of task. Which is not one of the tasks?

Data mining remains an ethically neutral issue.

Summarizing a number of survey questions into a single concept could be achieved with which type of analysis?

In factor analysis, naming factors is a somewhat subjective step, combining intuition and knowledge of the variables with an inspection of the variables that have high loadings on each factor.