The average earnings per share (EPS)for 10 industrial stocks randomlyselected from those listed on theDow-Jones Industrial Average wasfound to be= 1.85 with a standarddeviation of s=0.395.Calculate a 99% confidence intervalfor the average EPS of all theindustrials listed on the DJIA.Lowest value of interval?Highest value of interval?

Given data,n=10x=1.85s=0.395α=0.01df=n-1=9t-critical value is tc=3.250

The average earnings per share (EPS) for 10 industrial stocks randomly selected from those listed on the Dow-Jones Industrial Average was found to be y = 1.85 with a standard deviation of s=0.395. Calculate a 99% confidence interval for the average EPS of all the

The average earnings per share (EPS) for 10 industrial stocks randomly selected from those listed on the Dow-Jones Industrial Average was found to be y = 1.85 with a standard deviation of s=0.395. Calculate a 99% confidence interval for the average EPS of all the

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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A random sample of 50 roundtrip flights between New York and Chicago has an average airfare of $400 with a sample standard deviation of $50.0. The critical value for an 95% confidence interval around this sample mean is ________.
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A popular weight loss program claims that with its recommended healthy diet regimen, users lose significant weight within a month. In order to estimate the mean weight loss of all customers, a nutritionist takes a sample of 18 dieters and records their weight loss one month after joining the program. He computes the sample mean of weight loss as 12.5 pounds and the sample standard deviation of weight loss as 9.2 pounds. Compute the 90% confidence interval for the population mean. (Round to two decimal places.)
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