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In: Statistics and Probability

The sample data below have been collected based on a simple random sample from a normally...

The sample data below have been collected based on a simple random sample from a normally distributed population. Complete parts a and b. 5 4 0 5 7 6 9 0 8 4 a. Compute a 98% confidence interval estimate for the population mean. The 98% confidence interval for the population mean is from to . (Round to two decimal places as needed. Use ascending order.) b. Show what the impact would be if the confidence level is increased to %. Discuss why this occurs. Select the correct choice below and fill in the answer boxes to complete your choice. 99 (Round to two decimal places as needed. Use ascending order.) A. The % confidence interval is from to , which is narrower than the interval in part a. This is because the margin of error is greater for a higher confidence level. 99 B. The % confidence interval is from to , which is narrower than the interval in part a. This is because the margin of error is greater for a smaller confidence level. 99 C. The % confidence interval is from to , which is wider than the interval in part a. This is because the margin of error is greater for a higher confidence level. 99 D. The % confidence interval is from to , which is wider than the interval in part a. This is because the margin of error is greater for a smaller confidence level.

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Expert Solution

The 98% confidence interval for the population mean is from to
The 99% confidence interval is from to , which is wider than the interval in part a. This is because the margin of error is greater for a higher confidence level.

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orchestra answered 1 year ago
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