A Researcher Wants to Estimate the Population Proportion with a 90

question 16

Multiple Choice

A researcher wants to estimate the population proportion with a 90% level of confidence.She estimates from previous studies that the population proportion is no more than .30.The researcher wants the estimate to have an error of no more than .02.The necessary sample size is at least ___.

• A)29
• B)47
• C)298
• D)1421
• E)1500

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Definitions:

Carboxylic Acid

Organic molecules that feature a carboxyl group (-COOH) are known for their acidic characteristics and are commonly found throughout the natural world.

Aldehyde

Organic compounds characterized by a carbon atom bonded to a hydrogen atom and double-bonded to an oxygen atom at the end of a carbon chain.

DIBAL

Diisobutylaluminum hydride, a reducing agent commonly used in organic synthesis to reduce esters, aldehydes, and ketones to alcohols.

Acid Chlorides

Reactive derivatives of carboxylic acids where the hydroxyl group has been replaced by a chloride ion, with general formula RCOCl.