MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Express the confidence interval 0.802±0.0740 in open interval form
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- The lifetime of a certain brand of electric light bulb is known to have a standard deviation of 53 hours. Suppose that a random sample of 50 bulbs of this brand has a mean of 495 hours. Find a 99% confidence interval for the true mean lifetime of all light bulbs of this brand. Then give the lower and upper limit. Carry intermediate computations to 3 decimal places, and answers to 1.arrow_forwarddf=20 confidence interval = 0.90 find out a critical value for left and right tailed testarrow_forwardExpress the confidence interval (0.037,0.091)in the form of ^p−E<p<^p+E.arrow_forward
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