Find the 95% Confidence Interval for the Variance of the Lengths

question 4

Multiple Choice

Find the 95% confidence interval for the variance of the lengths of pipes if a sample of 16 pipes has a standard deviation of 12 inches.

• A) \(14.0 < \sigma ^ { 2 } < 10.0\)
• B) \(8.9 < \sigma ^ { 2 } < 18.6\)
• C) \(128.0 \sigma ^ { 2 } < 160.0\)
• D) \(78.6 < \sigma ^ { 2 } < 344.9\)

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Definitions:

Transmitted

The process of sending or conveying something from one place or person to another.

Circuit Switching

Where a dedicated connection is formed between two points (such as two people on telephones) and the connection remains active for the duration of the transmission.

Dedicated Connection

A communication link reserved exclusively for the use of a specific service, user, or application, often guaranteeing constant bandwidth.

Transmission

Transmission refers to the process of transferring data or power from one place to another, often used in contexts like data transmission over networks or mechanical power transmission in machinery.