Exam 14: Analyzing Quantitative Data

A marketing firm is hired to promote two drug rehabilitation centers. The goal of the marketing firm is to attract more business to these two centers. The firm decides to do so by emphasizing the experience of the counselors. In center A, most counselors have 8 or more years of experience, but a few have about 6. Most counselors in center B have 5 to 6 years' experience, but a few have 9 or more. Which statistics should be used to maximize the appeal of each center?

A researcher reports that there was no case in a distribution that was more common than the others. This pertains to which method of central tendency?

Data cleaning is only necessary when you did not collect the data.

When inspecting a cross-tabulation table, a researcher notices that there is no variation in the categories of the independent variable. Which aspect of association is this?

Quartiles split a variable's distribution into three equal groups of cases.

In another model, the researcher wants to examine the effect that drug use has on education. To determine if the independent variable (drug use) has any effect on the dependent variable (education), the researcher should calculate ______.

Which of the following is an example of a bimodal distribution?

Which of the following is an inferential statistic?

Describe group-frequency distribution.

The following questions refer to the two tables below describing the hypothetical distribution of daily criminal activity in two cities. Distribution #1Distribution #2# of crimesPercent# of crimesPercent0-881-2.589-11122-3.51212403-4.54013-15284-5.52816105-6.51017 or more26-7.52 -What guideline for combining values in a frequency distribution was violated in Distribution #1?

Measures of central tendency include the mode, median, and the variance.

The values to be displayed in a frequency distribution should be grouped ______.

Which of the following represents a guideline for combining values in a frequency distribution?

Which of the following is a primary feature of the shape of a distribution?

When study results indicate that a prior hypothesis must be rejected, some researchers will explore the data to see if unanticipated relationships might make for more interesting results. In principle this is not a good idea because ______.