A Survey of 50 Retail Stores Revealed That the Average

question 68

Multiple Choice

A survey of 50 retail stores revealed that the average price of a microwave was $375,with a sample standard deviation of $20. Assuming the population is normally distributed,what is the 95% confidence interval to estimate the true cost of the microwave?

• A)$323.40 to $426.60
• B)$328.40 to $421.60
• C)$350.80 to $395.80
• D)$369.31 to $380.69

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Definitions:

Document

A written, drawn, presented, or memorialized representation of thought, often used as evidence or in official proceedings.

Undue Influence

A legal term describing a situation where an individual is able to persuade another's decisions due to the relationship between the two, often leading to the latter being taken advantage of.

Written Will

A legal document that expresses an individual's wishes regarding the distribution of their property and the care of any minor children upon their death.

Coerced

Compelled to act or make a decision through force or threats.