Introduction to Statistics Quiz - Intro Research Design Analysis

Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school would involve measurement on a(n) ____ scale of measurement.

Ordinal

Using letter grades (A, B, C, D, and E) to classify student performance on an exam is an example of measurement on a(n) ____ scale of measurement.​

Ordinal

A researcher is curious about the average monthly cell phone bill for all high school students in the state of Florida. If this average could be obtained, it would be an example of a ____.

Parameter

A researcher uses an anonymous survey to investigate the study habits of American college students. Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class. For this study, the set of 56 students who returned surveys is an example of a ____.​

sample

What is the value of ΣX + 1 for the following scores?​ Scores 1, 0, 2, 4

8

In a research study comparing attitude scores for males and females, participant gender is an example of what kind of variable?

Quazi Independent Variable

Determining a person's reaction time (in milliseconds) would involve measurement on a(n) ____ scale of measurement.

Ratio

A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a research study. The group of 25 rats is an example of a ____.

Sample

The average verbal SAT score for the entire class of entering freshmen is 530. However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530. What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?

Sampling Error

Which description provides an example of a discrete variable?

​The gender of each student in a psychology class