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) amich instructure.com/cours Use the following information to answer Questions 23 - 24. Silk fibers are very tough, but in short supply. Engineers are making breakthroughs to create synthetic silk fibers that can improve everything from car bumpers to bullet-proof vests, or make artificial blood vessels. A 95% confidence interval for the true mean toughness (in MJ/mº) of these fibers is found to be (14.79, 30.41). 13 23 6 Determine whether each of the following interpretations is a correct interpretation of the confidence interval, a correct interpretation of the confidence level, or an incorrect interpretation. We are 95% confident the

Explanation / Answer

23) a) Correct Interpretation of Confidence Interval

b) Correct Interpretation of Confidence level

c) Not a Correct Interpretation

24) Margin of error = (30.41-14.79)/2 = 7.81

25) a) Highly Right Skewed

b) Highly left Skewed

c) Approximately Bell Shaped

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