A Business Statistician Wishes to Determine Whether Current Unemployment Rates

question 7

Multiple Choice

A business statistician wishes to determine whether current unemployment rates differ between former communist countries and European/Asian nations that have not been under communist control. A sample of 10 countries each was randomly chosen from all eligible countries. The data are as follows: $\begin{array} { c c } \hline \text { Former Communist } & \text { Not Former Communist } \\\text { (\%) } & \text { (\%) } \\\hline 23 & 12 \\13 & 8 \\33 & 9 \\21 & 14 \\17 & 7 \\24 & 8 \\12 & 10 \\18 & 11 \\27 & 12 \\16 & 7 \\\hline\end{array}$
-The appropriate conclusion of this statistical analysis would be

• A)The mean unemployment rate (20.4%) in former communist countries is significantly greater (p < .001) than the mean unemployment rate (9.8%) in countries not formerly under communist control.
• B)The mean unemployment rate (9.8%) in former communist countries is significantly greater (p < .001) than the mean unemployment rate (20.4%) in countries not formerly under communist control.
• C)The mean unemployment rate (20.4%) in former communist countries is significantly greater (p < .05) than the mean unemployment rate (9.8%) in countries not formerly under communist control.
• D)The mean unemployment rate (20.4%) in former communist countries is not significantly greater (p > .05) than the mean unemployment rate (9.8%) in countries not formerly under communist control.

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Definitions:

Olfactory Bulbs

Structures located at the base of the brain's frontal lobes, involved in the processing of odors.

Cribriform Plate

A sievelike structure between the anterior cranial fossa and the nasal cavity, forming part of the ethmoid bone.

Texture

The feel, appearance, or consistency of a surface, substance, or fabric, determined by its physical structure.

Sensory Adaption

The mechanism through which sensory receptors decrease in sensitivity to unchanging stimuli over a period.