Use the Given Degree of Confidence and Sample Data to Construct

question 128

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean µ. Assume that the population has a normal distribution.
-To find the standard deviation of the diameter of wooden dowels, the manufacturer measures 19 randomly selected dowels and finds the standard deviation of the sample to be s = 0.16. Find the 95% confidence interval for the population standard deviation ?.

• A) \(0.13 < \sigma < 0.22\)
• B) \(0.15 < \sigma < 0.21\)
• C) \(0.12 < \sigma < 0.24\)
• D) \(0.11 < \sigma < 0.25\)

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Definitions:

Content Validity

The extent to which a test measures all aspects of the concept or construct it aims to assess.

Standardized Validity

The extent to which the results of a test or measurement are consistent and accurate across different populations and settings.

High Reliability

The concept or state of being able to function under high levels of uncertainty or risk without significant failures or accidents.

Content Validity

The extent to which a test measures the entire range of material or behavior that is supposed to be measured.