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

question 41

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 null hypothesis is ________.

• A)\(\mu\) = 25
• B)\(\sigma\)² = 8
• C)\(\sigma\)² = 4
• D)\(\sigma\)² \(\le\) 8
• E)s² = 16

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Definitions:

Encourage

To promote, support, or advocate for a certain behavior, action, or development through positive reinforcement or motivation.

Encoding

The mechanism by which information gets into memory.

Attention

Concentrating and focusing mental resources.

Selectivity

Refers to the process of choosing or making a choice when faced with several options, often used in the context of attention, perception, or consumer choices.