You Want to Estimate the Proportion of Customers Who Are

question 75

Multiple Choice

You want to estimate the proportion of customers who are satisfied with their experiences at a local supermarket at α = .10 and within .025 of the true value. It has been estimated that p =.85. How large of a sample is needed?

• A) 1083
• B) 553
• C) 71
• D) 336

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Definitions:

Sound Waves

Sounds that move through air or another substance and become audible when they arrive at the ear of a person or animal.

Soprano Voice

The highest female singing voice in choral music, characterized by its bright and high-pitched sound.

Bass Voice

The lowest adult male singing voice, characterized by its low pitch range.

Cochlea

A spiral-shaped, fluid-filled inner ear structure that is essential for translating sound into nerve impulses sent to the brain.