David Desreumaux, VP of Human Resources of American First Banks $\alpha$

question 90

Multiple Choice

David Desreumaux, VP of Human Resources of American First Banks (AFB) , is reviewing the employee training programs of AFB.Based on a recent census of personnel, David knows that the variance of teller training time in the southeast region is 8, and he wonders if the variance in the southwest region is the same number.His staff randomly selected personnel files for 15 tellers in the southwest region, and determined that their mean training time was 25 hours and that the standard deviation was 4 hours.Assume that teller training time is normally distributed.Using $\alpha$ = 0.10, the appropriate decision is ________.

• A)increase the sample size
• B)reduce the sample size
• C)fail to reject the null hypothesis
• D)maintain status quo
• E)reject the null hypothesis

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Definitions:

Horizontal Axis

The x-axis in a graph, generally representing the independent variable in data representation or analysis.

Perfect Complements

Goods that are consumed together in fixed proportions because their use together enhances their combined utility.

Indifference Curves

Graphical representations used in microeconomics to show different combinations of two goods between which a consumer is indifferent, signifying equal levels of utility.

Bliss Point

The optimal quantity of consumption where any further increase or decrease would lead to lower satisfaction or utility.