Calculate the range, interquartile range, variance

Reference no: EM1317682

One of the major measures of the quality of service provided by any organization is the speed with which responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a major expansion in the past several years. In particular, the flooring department had expanded from two installation crews to an installation supervisor, measures, and 15 installation crews. A sample of 50 complaints concerning carpet installation was selected during recent year. The data in the file furniture.xls represent the number of days between the receipt of a complaint and the resolution of the complaint:

54	5	35	137	31	27	152	2	123	81	74	27
11	19	126	110	110	29	61	35	94	31	26	5
12	4	165	32	29	28	29	26	25	1	14	13
13	10	5	27	4	52	30	22	36	26	20	23
33	68

Calculate the range, interquartile range, variance, standard deviation, and coefficient of variation.

Reference no: EM1317682

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