Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but we suspect that the variability in concentration differ between the two companies. The standard deviation of concentration in a random sample of n1 = 10 batches produced by company 1 is s1 = 4.7 grams per liter, while for company 2, a random sample of n2 = 16 batches yields s2 = 5.7 grams per liter. Is there sufficient evidence to conclude that the two population variances differ? (a) Test the hypothesis Ho : o = o} vs H1 : 0 # o. Calculate fo = i 0.709 Round your answer to three decimal places (e.g. 98.765). (b) Is there sufficient evidence to conclude that the two population variances differ? Use a = 0.05. no

Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but we suspect that the variability in concentration differ between the two companies. The standard deviation of concentration in a random sample of n1 = 10 batches produced by company 1 is s1 = 4.7 grams per liter, while for company 2, a random sample of n2 = 16 batches yields s2 = 5.7 grams per liter. Is there sufficient evidence to conclude that the two population variances differ? (a) Test the hypothesis Ho : o = o} vs H1 : 0 # o. Calculate fo = i 0.709 Round your answer to three decimal places (e.g. 98.765). (b) Is there sufficient evidence to conclude that the two population variances differ? Use a = 0.05. no

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Description: Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. Themean concentration for both suppliers is the same, but we suspect that the variability in concentration differ between 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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