A Police Chief Wants to Determine If Crime Rates Are

question 37

Multiple Choice

A police chief wants to determine if crime rates are different for four different areas of the city (East(1) , West(2) , North(3) , and South(4) sides) , and obtains data on the number of crimes per day in each area. The Tukey's confidence intervals are shown below. At the 1% significance level, the conclusion from Tukey's confidence intervals is we ________.

• A) cannot conclude the mean number of crimes differs for West and East
• B) cannot conclude the mean number of crimes differs for West and South
• C) cannot conclude the mean number of crimes differs for South and North
• D) cannot conclude the mean number of crimes differs for West and North

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Definitions:

Residential Properties

Properties designed for people to live in, including houses, apartments, condos, and townhomes.

Permutation Test

A nonparametric statistical test method used to determine if two or more samples come from the same distribution.

P-value

A statistical measure indicating the probability of observing test results at least as extreme as those actually observed, assuming that the null hypothesis is true.

Standard Deviation

A measure that indicates the amount of variation or dispersion of a set of values from the mean (average) of that set.