The Thomas Supply Company Inc is a distributor of gaspowered

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

32

33

34

34

35

35

36

37

38

   41

41

41

45

46

47

47

49

53

53

55

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.

Solution

A)

Q1 is higher than at least 25% of the data. As 25% of 30 is 7.5, then it must be 9th entry.

Hence,

Q1 = 34 [ANSWER]

Q3 is higher than at least 75% of the data. As 75% of 30 is 22.5, then it must be 24th entry.

Hence,

Q3 = 53 [ANSWER]

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b)

D2 is higher than at least 20% of the data. As 20% of 30 is 6, then it must be 7th entry.

Hence,

D2 = 32 [ANSWER]

D8 is higher than at least 80% of the data. As 80% of 30 is 24, then it must be 25th entry.

Hence,

D8 = 53 [ANSWER]

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c)

P67 is higher than at least 67% of the data. As 67% of 30 is 20.1, then it must be 22nd entry.

Hence,

P67 = 47 [ANSWER]