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1. Two samples drawn from normal distributions with the following sample sizes: ni = 15 and na= 15. sample means X,= 6.2 and x= 7.8, and sample variances s, =4 and s = 6.25. Assuming they have equal variances. Their pooled estimator of variance (S,) is: a) 49.64 (6) 5.125 c) 6.5 d) 46.1 e) 7.045 The first

1. Two samples drawn from normal distributions with the following sample sizes: ni = 15 and na= 15. sample means X,= 6.2 and x= 7.8, and sample variances s, =4 and s = 6.25. Assuming they have equal variances. Their pooled estimator of variance (S,) is: a) 49.64 (6) 5.125 c) 6.5 d) 46.1 e) 7.045 The first

MATLAB: An Introduction with Applications
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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1. Two samples drawn from normal distributions with the following sample sizes: ni = 15 and na= 15, sample means x= 6.2 and x= 7.8, and sample variances s, = 4 and sz = 6.25. Assuming they have equal variances. Their pooled estimator of variance (S,) is: a) 49.64 6) 5.125 c) 6.5 d) 46.1 e) 7.045 ionce The first
Transcribed Image Text:1. Two samples drawn from normal distributions with the following sample sizes: ni = 15 and na= 15, sample means x= 6.2 and x= 7.8, and sample variances s, = 4 and sz = 6.25. Assuming they have equal variances. Their pooled estimator of variance (S,) is: a) 49.64 6) 5.125 c) 6.5 d) 46.1 e) 7.045 ionce The first
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