A City Manager Wanted to Find Out What Residents Think

question 10

Multiple Choice

A city manager wanted to find out what residents think of new parking rules recently put in place .He published some survey questions in an insert in the local newspaper and directed interested individuals to drop off the form at city hall .What type of sampling strategy is this?

• A)Systematic
• B)Random
• C)Stratified
• D)Voluntary

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Definitions:

Sample Size

The number of individual observations or data points collected in a sample from a larger population.

ANOVA

A statistical method, short for Analysis of Variance, that assesses potential differences in means among multiple groups.

Assumptions

Assumptions are accepted truths or beliefs that are taken for granted without proof, used as a basis for reasoning, discussions, or theoretical modeling.

Nonparametric Test

A type of statistical test that does not assume the data follows a normal distribution or any other specified parameters.