Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal. In words, define the random variables X and ?⎯⎯⎯X¯. Which distribution should you use for this problem? Explain your choice. Construct a 95% confidence interval for the population mean length of engineering conferences. State the confidence interval. Sketch the graph. Calculate the error bound.
Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal. In words, define the random variables X and ?⎯⎯⎯X¯. Which distribution should you use for this problem? Explain your choice. Construct a 95% confidence interval for the population mean length of engineering conferences. State the confidence interval. Sketch the graph. Calculate the error bound.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The
- In words, define the random variables X and ?⎯⎯⎯X¯.
- Which distribution should you use for this problem? Explain your choice.
- Construct a 95% confidence interval for the population mean length of engineering conferences.
- State the confidence interval.
- Sketch the graph.
- Calculate the error bound.
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