Consider the following sample data.
Sample A: | 11, 22, 33 |
Sample B: | 81, 92, 103 |
Sample C: | 1,100; 1,111; 1,122 |
(a) Find the mean and standard deviation for each
sample.
Sample A: | Sample B: | Sample C: | |
Mean | |||
Sample Standard Deviation | |||
(b) What does this exercise show about the
standard deviation?
The idea is to illustrate that the standard deviation is not a function of the value of the mean.
The idea is to illustrate that the standard deviation is a function of the value of the mean.
using excel function: average(array) ; stdev(array)
from given data
a)
Groups | A | B | C |
Average | 22 | 92 | 1111 |
standard deviation | 11 | 11 | 11 |
b)
The idea is to illustrate that the standard deviation is not a function of the value of the mean.
Consider the following sample data. Sample A: 11, 22, 33 Sample B: 81, 92, 103 Sample...
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