A random sample of 10 chocolate energy bars of a certain brand has, on average, 240calories per bar, with a standard deviation of 15 calories. Construct a 95% confidenceinterval for the true mean calorie content of this brand of energy bar. Assume that thedistribution of the calorie content is approximately normal.Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.Click here to view page 1 of the table of critical values of the t-distribution.Click here to view page 2 of the table of critical values of the t-distribution.The confidence interval is<μ<(Round to one decimal place as needed.) A random sample of 12 graduates of a certain secretarial school typed an average of82.6 words per minute with a standard deviation of 8.1 words per minute. Assuming anormal distribution for the number of words typed per minute, find a 95% confidenceinterval for the average number of words typed by all graduates of this school.Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.Click here to view page 1 of the table of critical values of the t-distribution.Click here to view page 2 of the table of critical values of the t-distribution.The confidence interval is <μ<(Round to two decimal places as needed.)

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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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Transcribed Image Text:A random sample of 10 chocolate energy bars of a certain brand has, on average, 240 calories per bar, with a standard deviation of 15 calories. Construct a 95% confidence interval for the true mean calorie content of this brand of energy bar. Assume that the distribution of the calorie content is approximately normal. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. The confidence interval is <μ< (Round to one decimal place as needed.)