An Entrepreneur Is Considering the Purchase of a Coin-Operated Laundry

question 115

Multiple Choice

An entrepreneur is considering the purchase of a coin-operated laundry.The current owner claims that over the past 5 years,the mean daily revenue was $675 with a standard deviation of $75.A sample of 30 days reveals a daily mean revenue of $625 and a standard deviation of $70.Which of the following tests will be the most appropriate?

• A)t test for the mean.
• B)Z test for the proportion.
• C)Pooled-variance t test.
• D)Separate-variance t test.

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Definitions:

Specific Phobia

An intense, irrational fear of, or aversion to, specific objects or situations that poses little to no actual danger.

Anxiety Disorder

A group of mental health disorders characterized by significant feelings of anxiety and fear, affecting daily living.

Phobia

an extreme or irrational fear of or aversion to something, significantly impacting an individual's ability to function normally in certain situations.

Psychodynamic Model

A psychological perspective that emphasizes unconscious processes and childhood experiences in shaping behaviors and personalities.