The Thomas Supply Company Inc. is a distributor of gas-powered generators. As wi
ID: 3439869 • Letter: T
Question
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
27
31
34
34
34
35
35
36
37
38
41
41
41
45
47
47
47
50
51
53
54
56
62
67
82
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.
Explanation / Answer
There are N=30 observations
(a)
N/4=7.5 and 3N/4 = 22.5
=> Q1 = 8th observation in the ordered sample = 34
and Q3 = 23th observation = 50
(b)
N*0.2 = 6 and N*0.8 = 24
=> D2= 6th observation = 27
and D8= 24 th observation = 51
(c)
N*67% = 20.1
=> P67= 21st observation = 47
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