A Confidence Interval Was Used to Estimate the Proportion of Business

question 45

Multiple Choice

A confidence interval was used to estimate the proportion of business statistics students that are females.A random sample of 72 business statistics students generated the following 90% confidence interval: (0.438,0.642) .Using the information above,what total sample size would be necessary if we wanted to estimate the true proportion to within 0.08 using 95% confidence?

• A) 105
• B) 150
• C) 597
• D) 420

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Definitions:

Consciousness

The state of being aware of and able to think about one's environment, thoughts, and experiences.

Alpha Waves

Brainwave patterns associated with a relaxed, awake state, typically present during light meditation and the initial stages of sleep.

Delta Waves

Low-frequency brain waves that are typically associated with deep sleep.

Omega

The last letter of the Greek alphabet, often symbolizing the end or last of something.