Find the Sample Size

question 19

Multiple Choice

Find the sample size.
-A manufacturer of cheese filled ravioli wants to make sure that its automatic filling
Process is on target. Based on a sample of 25 ravioli the mean weight of cheese filling is
Estimated to be 15 grams with a standard deviation of 1.5 grams. However, the quality
Control inspectors wish to estimate the mean weight of cheese filling more accurately so
That they can be 99% confident that it is within .25 grams of the true mean. How many
Ravioli should they sample?

• A) 150
• B) 543
• C) 212
• D) 410
• E) 239

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Definitions:

Price

The monetary worth anticipated, necessitated, or provided in compensation for an item.

Equivalent Variation

A measure in economics that captures the change in income needed to reach a utility level after a price change, keeping welfare constant.

Utility Function

A mathematical model used in economics to represent a consumer's preference ranking for different bundles of goods, showing satisfaction levels.

Consumption

The act of using goods and services to satisfy needs or wants.