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

question 2

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 critical values of chi-square are ________.

• A)7.96 and 26.30
• B)6.57 and 23.68
• C)-1.96 and 1.96
• D)-1.645 and 1.645
• E)-6.57 and 23.68

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Definitions:

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An endocrine gland located in the neck that produces hormones regulating metabolism, body energy, and the body's use of other hormones and vitamins.

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The act of drinking water in small mouthfuls, often recommended for health or well-being.

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The excessive and harmful consumption of alcohol, leading to negative health and social consequences.