# Limits of Confidence Interval

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The following data were randomly drawn from an approximately normal population.

24, 25, 28, 31, 34, 38

Based on these data, find a confidence interval for the population standard deviation. Then complete the table below.

Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places.

1. What is the lower limit of the 99% confidence interval? ____

2. What is the upper limit of the 99% confidence interval? ____

https://brainmass.com/statistics/confidence-interval/limits-of-confidence-interval-14298

#### Solution Preview

First, find the mean of the data

Total: 24 + 25 + 28 + 31 + 34 + 38 = 180

Mean = 180 / 6

= 30

Variance = [(24 â€“ 30)^2 + ...

#### Solution Summary

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