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Name: A study was done using a treatment group and a placebo group. The resu
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Description: A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population

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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A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.10 significance level for both parts.

	Treatment	Placebo
Mu	Mu1	Mu2
n	35	30
x-bar	2.31	2.69
s	.56	.94

what are the null and alternative hypotheses

what is the test statistic?

what is the P-value?

Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean.

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