A sample mean for a treated group of n = 9 individuals is 32and the population mean for the untreated group is 26. Ifthe sample standard deviation is 9 ( is unknown), which ofthe following test statistics is correct?O z = .67O z = 2.0Ot=.67O t = 2.0

It is assumed that μ is the population mean for the untreated group.

Answered: A sample mean for a treated group of n…

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 sample mean for a treated group of n = 9 individuals is 32 and the population mean for the untreated group is 26. If the sample standard deviation is 9 ( is unknown), which of the following test statistics is correct? O z = .67 OZ = 2.0 Ot=.67 O t = 2.0