A Manager of a Dealer Center Wants to Know What

question 13

Multiple Choice

A manager of a dealer center wants to know what is the percentage of consumers who prefer sedan cars. He collects some information about selling cars in his city from several dealer centers. It appears that 47 consumers out of 142 prefer sedan cars. Estimate the proportion of consumers who prefer a sedan and calculate the margin of error with the confidence level of 95%.

• A)The proportion of consumers who prefer sedan cars is 0.33, the margin of error is 0.065.
• B)The proportion of consumers who prefer sedan cars is 0.47, the margin of error is 0.078.
• C)The proportion of consumers who prefer sedan cars is 0.33, the margin of error is 0.078.
• D)The proportion of consumers who prefer sedan cars is 0.33, the margin of error is 0.033.
• E)The proportion of consumers who prefer sedan cars is 0.47, the margin of error is 0.040.

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Definitions:

Hypocalcemia

A medical condition characterized by low levels of calcium in the blood, which can lead to muscle spasms and tingling in the extremities.

Calcium Deficiency

A condition where the body does not have enough calcium, leading to weakened bones and other health issues.

Health

A state of complete physical and mental or social well-being.

Well-Being

A state of being comfortable, healthy, or happy, encompassing physical, mental, and emotional health.