Find the Margin of Error

question 2

Multiple Choice

Find the margin of error.
-A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on
Data collected from its automatic filling process, the amount of cheese inserted into the
Ravioli is normally distributed. To make sure that the automatic filling process is on
Target, quality control inspectors take a sample of 25 ravioli and measure the weight of
Cheese filling. They find a sample mean weight of 15 grams with a standard deviation of 1.5 grams. What is the margin of error at 90% confidence?

• A) 0.3 grams
• B) 0.5133 grams
• C) 0.8391 grams
• D) 1.5 grams
• E) 0.06 grams

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Definitions:

Adverse Supply Shock

An unexpected event that suddenly decreases supply, leading to higher prices and lower quantities available.

Short-run Phillips Curve

A graphical representation showing the inverse relationship between the rate of inflation and the rate of unemployment in an economy over a short period.

Favorable Supply Shock

An unexpected event that increases the availability of a good or service, thus lowering its price and benefiting consumers.

Inflation

The measure of how quickly the general pricing for products and services advances, decreasing monetary purchasing power.