Question

Asked Sep 29, 2019

A random sample of 15 exam scores showed a standard deviation of 6.0 points. Find the 95 percent confidence interval for the population standard deviation. Use Appendix E to obtain the values of χ2LχL2 and χ2UχU2 . **(Round your answers to 2 decimal places.)**

The 95% confidence interval is from ______ to __________ .

Step 1

The sample size, *n* is provided as 15 with a sample standard deviation, *s* of 6.0. The confidence level is 95%. Therefore, the level of significance is...

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