Assume That a Sample Is Used to Estimate a Population

question 31

Multiple Choice

Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the
given statistics and confidence level. Round the margin of error to four decimal places.
-98% confidence; the sample size is 800, of which 40% are successes

• A) 0.0339
• B) 0.0446
• C) 0.0355
• D) 0.0404

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Definitions:

Aquatic Ecosystem

A water-based environment which includes both marine and freshwater habitats, supporting a diverse range of life forms.

Nutrient Concentrations

The quantities of essential chemical elements or compounds, like nitrogen and phosphorus, available in an environment, crucial for the growth of organisms.

Algae Blooms

A rapid increase or accumulation in the population of algae in an aquatic system, often resulting in a visible discoloration of the water.

Bottled Water

Packaged drinking water sold in plastic or glass bottles.