Jake keeps a log of the distance he covers, in miles, on each of his daily running workouts. Over thepast twelve months, he has recorded a large number of workouts. Jake randomly selected 10workouts from his log and found a mean distance of 4.81 miles with a standard deviation of 2.05miles. Assuming all conditions for inference are met, which of the following gives a 90% confidenceinterval to estimate the mean number of miles he ran in the past twelve months?(A) 4.81 ± 1.645(0.648)(B) 4.81 ± 1.81(0.648)(C) 4.81 ± 1.81(2.05)(D) 4.81 1.83(0.648)±(E) 4.81 ± 1.83(2.05)

The objective of this question is to find the 90% confidence interval for the mean number of miles…

Answered: Jake keeps a log of the distance he…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A random sample of 50 households is monitored for one year to determine aluminum usage. If the population standard deviation of annual usage is 12.3 pounds, what is the probability that the sample mean will be each of the following? Appendix A Statistical Tables d. Less than 55 poundse. Less than 49 pounds
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