A Confidence Interval Was Used to Estimate the Proportion of Statistics

question 26

Multiple Choice

A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90% confidence interval: (.438, .642) . Based on the interval, is the population proportion of females equal to 48%?

• A) No, and we are 90% sure of it.
• B) No, the proportion is 54%.
• C) Maybe. 48% is a believable value of the population proportion based on the information above.
• D) Yes, and we are 90% sure of it.

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Definitions:

Blood Alcohol Content (BAC)

The concentration of alcohol in one's bloodstream, used as a metric to measure intoxication levels for legal and medical purposes.

Alcohol Poisoning

A serious and potentially deadly condition resulting from drinking excessive amounts of alcohol in a short period of time, leading to a toxic level of alcohol in the blood.

Inability To Wake Up

A condition where an individual finds it extremely difficult to wake from sleep, potentially due to medical issues or sleep disorders.

Marijuana

A psychoactive drug from the Cannabis plant, used for medical or recreational purposes.