Answered: A random sample of n 16 individuals is…

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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10. A random sample of n 16 individuals is selected
from a population with μ 70, and a treatment is
administered to each individual in the sample. After
treatment, the sample mean is found to be M 76
with SS 960.
a. How much difference is there between the mean for
the treated sample and the mean for the original
population? (Note: In a hypothesis test, this value
forms the numerator of the t statistic.)
b. How much difference is expected just by chance
between the sample mean and its population mean?
That is, find the standard error for M. (Note: In a
hypothesis test, this value is the denominator of the
t statistic.)
c. Based on the sample data, does the treatment have
a significant effect? Use a two-tailed test with
.05.

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