288 Confidence Interval for μ₁ −μ₂, 0² = 0² but Both Unknown Chapter 9 One- and Two-Sample Estimation Problems If ₁ and 2 are the means of independent random samples of sizes n₁ and n2, respectively, from approximately normal populations with unknown but equal variances, a 100(1-a) % confidence interval for ₁-₂ is given by (₁ − 2) — ta/2³p√ + < µ1 − µ₂ < (♬1 − T2) +ta/28p√ + 1 1 n1 n2 1 1 n1 n2 where Sp is the pooled estimate of the population standard deviation and to/2 is the t-value with v = n₁ +n₂ − 2 degrees of freedom, leaving an area of a/2 to the right.

288 Confidence Interval for μ₁ −μ₂, 0² = 0² but Both Unknown Chapter 9 One- and Two-Sample Estimation Problems If ₁ and 2 are the means of independent random samples of sizes n₁ and n2, respectively, from approximately normal populations with unknown but equal variances, a 100(1-a) % confidence interval for ₁-₂ is given by (₁ − 2) — ta/2³p√ + < µ1 − µ₂ < (♬1 − T2) +ta/28p√ + 1 1 n1 n2 1 1 n1 n2 where Sp is the pooled estimate of the population standard deviation and to/2 is the t-value with v = n₁ +n₂ − 2 degrees of freedom, leaving an area of a/2 to the right.

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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