Question: 16. Find the minimum sample size needed to be 95% confident that the sample variance is within 30% of the population variance. Finding Confidence Intervals.

16. Find the minimum sample size needed to be 95% confident that the sample variance is within 30% of the population variance.

Finding Confidence Intervals. In Exercises 17–24, assume that each sample is a simple random sample obtained from a population with a normal distribution.

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