Q1) Following is a sample of 25 measurements:
|
10
|
8
|
7
|
7
|
5
|
9
|
10
|
7
|
7
|
|
7
|
7
|
9
|
12
|
10
|
10
|
8
|
6
|
|
|
7
|
6
|
6
|
11
|
8
|
9
|
11
|
9
|
|
a) Create a dot diagram (plot) of these data
b) Calculate xBAR , s2 and s for this sample.
c) Count number of measurements in intervals. Express each count as percentage of total number of measurements.
d) Compare the percentage found in b) to percentage given by Empirical Rule and Chebyshev's Rule. (Make a table 3 x 3).