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Lecture 6

STAT 231 Lecture 6: q6.pdf

2 pages90 viewsFall 2013

Department
Statistics
Course Code
STAT231
Professor
Matthias Schonlau
Lecture
6

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q6
Question 6: Standard Error of mean
A data set contains the following values
0, 0, -1, -2
What is the sample standard error of the mean?
.479 (correct)
.957
.3585
.179
.239
Solution:
Mean: =

=
=0.75
Std.Dev:  =(
)
 (.)(.)(.)(.)
 = 0.9574271
Std.Err:

= 0.4787136
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