Exam 15: Testing for Differences Between Groups and for Relationships Among Variables

List the practical steps for interpreting t-test results.

In most business research,the estimate of a in a regression equation is most important.

What is ANOVA and when is it the appropriate statistical technique? What test is used to determine significance? Give an example of a research question that can be analyzed using ANOVA.

In regression,the standardized Y-intercept term is always 1.

One way to interpret the meaning of the results of the t-test is to focus on the ________ and the group means.

The key statistical test for an ANOVA model is the _____.

In a brand awareness study,if 25 of a group of 35 males identify the brand correctly and 15 of a group of 35 females identify this brand correctly,the chi-square value for this study is approximately _____.

An appropriate test for comparing the scores of two interval variables drawn from related populations is the _____.

The business spreadsheet software,Excel,is capable of running statistical analyses.

List the steps in interpreting a multiple regression model.

The ______ test studies the significance of a contingency table.

List at least three software programs discussed in the chapter that can be used to conduct statistical analyses.

Supposed you used a 10-point rating scale to measure intention-to-buy (1 = definitely would not buy and 10 = definitely would buy).If a group of 40 males had a mean of 7 and a standard deviation of 2.5,while a group of 35 females had a mean of 5 and a standard deviation of 1.4,the standard error of the difference between the means would be approximately _____.

The F-test partitions the total variance into within-group variance and between-group variance.

A pooled estimate of the standard error is a better estimate of the standard error than one based on the variance from either sample.

SPSS and SAS are examples of _____.

how do you determine the degrees of freedom in a four-cell chi-square test?

Discuss when a paired-samples t-test is appropriate and give an example of when it should be used.

Which test is appropriate for comparing the scores of two interval variables drawn from related populations?

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