Statistics ITU Board 2078
What are different methods of measuring dispersion. Sample of polythene bags from two manufactures, A, B, are tested by a prospective buyer for bursting pressure and the results are as follows.…
10What are different methods of measuring dispersion. Sample of polythene bags from two manufactures, A, B, are tested by a prospective buyer for bursting pressure and the results are as follows.
Bursting Pressure
5-10
10-15
15-20
20-25
25-30
30-35
Number of bags manufactured by
A
2
9
29
54
11
5
B
9
11
18
32
27
13
Which set of bags has more uniform pressure? If price are the same, Which manufacture's bags would be preferred by buyer? Use appropriate statistical tool
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