Stats: Chapter 1 Review

A population is the collection of some outcomes, responses, measurements, or counts that are of interest.

• True

• False

A sample statistic will NOT change from sample to sample.

• True

• False

In a survey of 300 computer users, 8% said their computers had serious malfunctions. Is this a parameter or a statistic?

• Parameter

• Statistic

• Neither

• Both

The cost of items in a shopper's grocery cart represents quantitative data.

• True

• False

The social security numbers of tax payers in Colorado represents quantitative data.

• True

• False

Identify the data set's level of measurement: The IQ scores of students in a class.

• Nominal

• Ordinal

• Interval

• Ratio

Identify the data set's level of measurement: The ranking of teams at the Olympics based on medal count.

• Nominal

• Ordinal

• Interval

• Ratio

The sequence of math classes in a high school

• Nominal

• Ordinal

• Interval

• Ratio

Decide which method of data collection would be most appropriate:

25 students will be graded with MyStatLab, and another 25 will be graded using the current method, the groups will be compared at the end of the semester.

• Observational Study

• Experiment

• Simulation

• Survey

Decide which method of data collection would be most appropriate:

You and a friend are interested in what career paths are most prevalent among your peer group.

• Observational Study

• Experiment

• Simulation

• Survey