Statistics

Statistics

Chapter 6 Solutions Chapter 6 Review

Table

Sampling

Definition

Simple

All subsets of the given frame have an equal opportunity of being selected.

This technique arranges the population based on some pre-determined order. The sample is then selected at a determined interval from the list. During this sampling technique, the population experiences and is organized into distinct categories or classifications. The sampling frame is then organized into categories also called strata. Sampling is clustered or grouped by geography or other defining population characteristics (such as generations). First, a given population is selected from a random list of participants. The sample is then reduced by asking questions that would narrow down the given sample.

Systematic

Stratified

Cluster

Panel

Practice Questions

1. Six Steps

a. Define the population or experimental group. b. Specify and select what is to be tested or measured. c. Determine the correct method of sampling d. Determine the population size. e. Test the hypothesis. f. Collect the data. 2. Because an entire population would be too large and not practical. Subsets or samples are taken to represent a population. 3. Probability sampling: every possibility (characteristic) within the given population has an equal opportunity or likelihood of being selected for the sample; produces an unbiased representation of the population. Non-probability sampling: not every possibility (characteristic) within the given population has an equal opportunity or likelihood of being selected for the sample; produce a biased or skewed representation of the population.

Chapter 6 Quiz

1.

A

2.

A

3.

B

4.

A

5.

B

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