Question

Required information

Problem 9-1

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The following are the car repair shop data:

Ticket No.		Work		Ticket No.	Work		Ticket No.	Work
1			Brakes	11		Tires	21		Lube & oil
2			Lube & oil	12		Lube & oil	22		Lube & oil
3			Tires	13		Battery	23		Lube & oil
4			Brakes	14		Lube & oil	24		Brakes
5			Lube & oil	15		Lube & oil	25		Brakes
6			Lube & oil	16		Brakes	26		Tires
7			Tires	17		Transmission	27		Tires
8			Battery	18		Lube & oil	28		Tires
9			Brakes	19		Lube & oil	29		Brakes
10			Tires	20		Tires	30		Lube & oil

Problem 9-1 Part a

a.Prepare a check sheet for the above car repair shop data:

Work Type	Frequency
Lube & oil
Tires
Brakes
Battery
Transmission
Total

Answer 1

Check sheet for above car repair shop is calculate by number of works in the repair process based up on ticket number.

For Lube and oil work type = Ticket number (2,5,6,12,14,15,18,19,21,22,23,30) = 12

For Tires work type = Ticket number (3,7,10,11,20,26,27,28) = 8

For Brakes work type = Ticket number (1,4,9,16,24,25,29) = 7

For Battery work type = Ticket number (8,13) = 2

For Transmission work type = Ticket number (17) = 1

So total work types = 12+8+7+2+1 = 30