Find the 95% Confidence Interval for the Standard Deviation of the Lengths

question 71

Multiple Choice

Find the 95% confidence interval for the standard deviation of the lengths of pipes if a sample of 11 pipes has a standard deviation of 10.6 inches.

• A) \(54.9 < \sigma < 346.0\)
• B) \(7.6 < \sigma < 9.6\)
• C) \(7.4 < \sigma < 18.6\)
• D) \(101.4 < \sigma < 123.4\)

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Definitions:

Aggregate Demand

The comprehensive requirement for all goods and services in an economic situation, fixed at a specific overall price level during a certain timeframe.

Stagflation

An economic condition characterized by high inflation, high unemployment, and stagnant demand in a country’s economy.

Aggregate Demand

The collective demand for all goods and services within a particular economy at a specific price level and time period.

Aggregate Demand

is the total demand for all goods and services within a particular market or economy at a given price level and in a given time period.