2023 1 Which of the following measures is especially useful when dealing with ordinal data | Assignments Online

1. Which of the following measures is especially useful when dealing with ordinal data and data that is skewed to either the right or left?

A. Mean 

B. Median 

C. Mode 

D. Standard deviation 

 

2. Variance is:

A. the average squared deviations about the mean of a distribution of values. 

B. an empirically testable statement that is an unproven supposition developed in order to explain phenomena. 

C. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order. 

D. a statement that is the opposite of the null hypothesis. 

 

3. Which of the following statements is FALSE about cross-tabulation?

A. It is the primary form of data analysis in some marketing research projects. 

B. It is used to determine if differences exist among sub-groups of the total sample. 

C. Generally speaking, demographic variables are used as rows and other research variables are used as columns in a cross-tab. 

D. It reports both absolute frequencies as well as percentages. 

 

4. Which of the following statements about the Chi-square test is FALSE?

A. When the differences between observed and expected frequencies are large, one must accept the null hypothesis. 

B. The larger the Chi-square, the more related the two variables are. 

C. The expected frequencies are theoretically calculated. 

D. The Chi-square test is also called a “goodness of fit” test.