Q6. A 95% C.I. for µ, the mean of a population of Y was obtained as:[-2.5 , 3.5].What was the sample mean used to obtain the confidence interval?A. -1.5В.0.0 C.1.0D.1.5О А. АОВ. ВС. СO D. D

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Answered: Q6. A 95% C.I. for µ, the mean of a…

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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Q1. An anthropologist wants to collect data to determine whether the two different cultural groups that occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of adult females are as follows Group A n = 120 X,= 62.7 Sz=2.5 Group B n = 150 X2 = 61.8 S2 = 2.62 Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups are the same? Set alpha to .05. 3. What is the value of the test statistic? A. T = 9.20 B.T = 2.86 C.Z = 9.20 D.T = 1.44 E.None of these
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Q6. A 95% C.I. for µ, the mean of a population of Y was obtained as: [-2.5 , 3.5]. What was the sample mean used to obtain the confidence interval? Α.-1.5 В. 0.0 C. 1.0 D. 1.5 ОА. А В. В О С. С O D. D