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A random sample of 20 observations is selected from a normally distributed population. The sample ...

A random sample of 20 observations is selected from a normally distributed population. The sample variance is 12. In the 95% confidence interval for the population standard deviation, the upper limit will be:

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2.634.

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2.750.

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4.747.

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5.060.

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Introductory Statistics: A Problem-Solving Approach

Edition: 3^rd

Author: Kokoska

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