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Determine the cofficient of skewness using pearsons method

Assignment Help Basic Statistics
Reference no: EM132231131

Question 1: Listed below are the comissions earned ($ 000)last year by a sample of of 15 sales reprensentatives at Furniture Patch inc

Commissions
4.4
6.2
8.2
11.5
12.7
13.6
14.3
15.7
17.3
17.4
18.4
22.3
35.7
43.2
78.1

Determine

A. Mean
Median
Standard Deviation

B. Determine the cofficient of Skewness using pearson's method

C. Determine the coefficient of skewners using the Software method. (Round your answer 3 decimal places)

Question 2: The Thomas Supply Company, Inc. is a distributor of gas-powered generators. As with any business, the length of time customers take to pay their invoices is important. Listed below, arranged from smallest to largest, is the time, in days, for a sample of The Thomas Supply Company, Inc. invoices

13,13,13,20,26,26,27,31,34,34,35,35,36,37,38,41,41,41,42,43,44,47,48,49,51,55,56,62,67,82

A. Determine the
First quartiles
Third quartiles

B.Determine the
Second decile
eight decile

C. Determine the 67 percentile

Verified Expert

Mean and Median of commissions earned are $21.267 and $15.00 respectively with Standard deviation of $18.164 showing Mean is not much reliable for measuring central tendency for statistical analysis.Skewness coefficient as per calculation is 1.0350, whereas as per software Skewness is 2.282 that reflects huge difference between these two.The Thomas Supply Company, Inc. has First Quartile of 29 days and Third Quartile of 47.50 days.

Reference no: EM132231131

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