Assume the Sample Is Taken from a Normally Distributed Population $\sigma .$

question 66

Multiple Choice

Assume the sample is taken from a normally distributed population and construct the indicated confidence interval.
-The grade point averages for 10 randomly selected students are listed below. Construct a 90% confidence interval for the population standard deviation, $\sigma .$ 2.0 3.2 1.8 2.9 0.9 4.0 3.3 2.9 3.6 0.8

• A)(0.81, 1.83)
• B)(0.32, 0.85)
• C)(0.53, 1.01)
• D)(1.10, 2.01)

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