Suppose You Want to Calculate a Confidence Interval to Estimate

question 26

Multiple Choice

Suppose you want to calculate a confidence interval to estimate the population mean.What happens if you want to be more than 95% confident in your results but you can't take another sample? (Assume data quality is not an issue.)

• A)You need a larger confidence level than 95%.
• B)You need to use a multiplier that is larger than 2 to create your margin of error.
• C)You will have to live with a wider confidence interval.
• D)All of the above.

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Definitions:

Volume

A measure of the amount of space that a substance or object occupies or that is enclosed within a container.

Mass

A measure of the amount of matter contained in an object, reflecting its resistance to acceleration when a force is applied.

Chemical Sample

A portion of material taken to represent the whole of a substance for analysis or study.

Density

The mass of a substance per unit volume, often expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).