Question

In: Statistics and Probability

Consider the following sets of sample data: A: 20,58920,589, 21,89921,899, 22,00022,000, 22,11222,112, 22,11322,113, 20,95520,955, 21,42321,423, 20,84520,845,...

Consider the following sets of sample data:

A:

20,58920,589, 21,89921,899, 22,00022,000, 22,11222,112, 22,11322,113, 20,95520,955, 21,42321,423, 20,84520,845, 21,68321,683, 21,71521,715, 21,31521,315, 22,13322,133, 20,10320,103, 20,18220,182

B:

2.912.91, 4.074.07, 3.803.80, 4.794.79, 3.653.65, 4.444.44, 3.383.38, 4.494.49, 3.733.73, 3.113.11, 3.103.10

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Step 1 of 2 :

For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place.

Expert Solution

1.

The sample size is n=14. The provided sample data along with the data required to compute the sample mean and sample variance are shown in the table below:

	A	A²
	20589	423906921
	21899	479566201
	22000	484000000
	22112	488940544
	22113	488984769
	20955	439112025
	21423	458944929
	20845	434514025
	21683	470152489
	21715	471541225
	21315	454329225
	22133	489869689
	20103	404130609
	20182	407313124
Sum =	299067	6395305775

2.

The sample size is n=11. The provided sample data along with the data required to compute the sample mean and sample variance are shown in the table below:

	B	B²
	2.91	8.4681
	4.07	16.5649
	3.80	14.44
	4.79	22.9441
	3.65	13.3225
	4.44	19.7136
	3.38	11.4244
	4.49	20.1601
	3.73	13.9129
	3.11	9.6721
	3.10	9.61
Sum =	41.47	160.233

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orchestra answered 3 years ago

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