A Sociologist Develops a Test to Measure Attitudes About Public $17.2 < \sigma < 27.2$

question 89

Multiple Choice

A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the standard deviation, ?, of the scores of all subjects.

• A) \(17.2 < \sigma < 27.2\)
• B) \(16.9 < \sigma < 29.3\)
• C) \(16.6 < \sigma < 28.6\)
• D) \(17.5 < \sigma < 27.8\)

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