The Thomas Supply Company Incorporated 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 Incorporated invoices. Use Excel   13 13 13 20 26 28 28 33 34 34 35 35 36 37 38 41 41 41 42 45 46 47 48 51 53 55 56 62 67 82       (Round your answers to 2 decimal places.)   a. Determine the first and third quartiles.       b. Determine the second decile and the eighth decile.       c. Determine the 67th percentile.

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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The Thomas Supply Company Incorporated 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 Incorporated invoices.

Use Excel
 

13 13 13 20 26 28 28 33 34 34 35 35 36 37 38
41 41 41 42 45 46 47 48 51 53 55 56 62 67 82

 

 


 
(Round your answers to 2 decimal places.)
 
a. Determine the first and third quartiles.
 

 


 
b. Determine the second decile and the eighth decile.
 

 


 
c. Determine the 67th percentile.
 

 
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