The average daily volume of a computer stock in 2011 was u = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 29.4 million shares, with a standard deviation of s= 13 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. Ho: 35.1 million shares 35.1 million shares ad (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2014. ud The lower bound is million shares. The upper bound is million shares. irad (Round to three decimal places as needed.) (c) Will the researcher reject the null hypothesis? eTex O A. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval. HTM

The average daily volume of a computer stock in 2011 was u = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 29.4 million shares, with a standard deviation of s= 13 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. Ho: 35.1 million shares 35.1 million shares ad (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2014. ud The lower bound is million shares. The upper bound is million shares. irad (Round to three decimal places as needed.) (c) Will the researcher reject the null hypothesis? eTex O A. Reject the null hypothesis because u = 35.1 million shares does not fall in the confidence interval. HTM

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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