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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Number 5

Transcribed Image Text:Explain what is measured by the sample standard
a sta
with S
а.
deviation.
b. Compute the estimated standard error for the
sample mean and explain what is measured by the
а. Но
for
ро
fo
b. H
standard error
3. Find the estimated standard error for the sample mean
for each of the following samples.
a. n 9 with SS = 1152
b. n= 16 with SS=
c. n = 25 with SS = 600
b
540
с.
4. Explain why t distributions tend to be flatter and more
spread out than the normal distribution.
10. Ar
5 Find the t values that form the boundaries of the criti-
cal region for a two-tailed test with a = .05 for each
of the following sample sizes:
= 4 0R
b. n = 15 0
fro
ad
tre
Wi
а. п —
a.
DIC9R
с. п %3D 24
6. Find the t value that forms the boundary of the critical
region in the right-hand tail for a one-tailed test with
a = .01 for each of the following sample sizes.
TE
a. п 3D 10
b. n 20
c. n 30
1. The following sample of n = 4 scores was obtained
from a population with unknown parameters.
Scores: 2, 2, 6, 2
11.
a. Compute the sample mean and standard deviation.
(Note that these are descriptive values that sum-
marize the sample data.)
D. Compute the estimated standard error for M.
forantial value that describes
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