The Owner of Touchdown Sports Bar Wants to Develop a Time

question 41

Multiple Choice

The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of five seconds.
How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second?

• A) 64
• B) 86
• C) 100
• D) 144
• E) 169

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Definitions:

Sexual Conflict

The evolution of phenotypic characteristics that confer a fitness benefit to one sex but a fitness cost to the other.

Senescence

Refers to the deterioration in the biological functions of an organism as it ages.

Longevity

The length of time that an organism, material, or object is expected to live or last.

Aging Processes

The biological and physiological changes that occur in organisms as they grow older, leading to a decline in function and increased vulnerability to disease.