Compilation of case studies
By discipline "Quality Management" code (HR-93) RIU TANTAL
Situation 1.
The introduction of the enterprise technological innovation has allowed to raise product quality and to increase the annual production of 500 products. Product price before the introduction of technological innovation has made 3000 rubles. And after the introduction - 3200 rubles. Determine the annual economic effect from the introduction of enterprise technological innovation, taking into account that the original version of production was equal to 2,500 units.
Situation 2.
The company has been subjected to continuous control n = 100 batches of 250 items in each. The inspection results are given in the table.
D 0 1 2 3 4 5 6 7 8 9 10 14 1 20
Mp 4 9 18 24 17 11 5 3 2 2 2 1 1 1
Mg 2 8 15 20 20 15 10 2 3 1 0 0 0 0
Where MD - A number of parties with defective products.
The acceptable level of quality of the enterprise received in the amount of 0.09.
Define: supplier's risk for a defective batches.
Situation 3.
At the shop produces eletrolampovom plant bulbs. To check the quality selected 30 lamps and is tested on a special stand. The test results are shown in Table.
Duration (x) Number of lamps burning lamps with burning (f) x * f
5 June 30
6 May 30
56 July 8
Thus, the average duration of burning lamps is 7 hours.
Situation 4.
On the manufacturing plant was subjected to statistical control of 100 batches of 300 items in each batch. As a result of monitoring it was revealed 900 defective products. According to the supplier's risk control plan is 0.01, and the risk of the consumer - 0.05, in the case of defective products q0 = 0,005, Qm = 0.02.
How many batches will be taken now to plan control?
Situation 5.
These production costs of the motor 1 at the plant in 1998 was 7,000 rubles. The introduction of a new process in the 1st quarter 1999 will reduce the adjusted cost up to 6500 rubles. Determine the economic impact in 1999 from the introduction of the new process, if you know that the program of the plant for 1999 is 10,000 motors.
Situation 6.
The plant sells them made radios for the price of 1000 rubles, bringing the cost of production up to 20% of the sales price. Expenditures on the acquisition of dealerships
radios for transportation and storage up to 10% of the sales price.
At what price they should sell receivers that have the economic effect of their trades are not below the cost effects of the manufacturer?
Situation 7.
The implementation of the invention will reduce the cost per unit of output is 100 rubles. The initial cost of the product was equal to 1500 rubles. The annual production of the company amounted to 10,000 units. One-time costs for the development and implementation of the invention have made 20,000 rubles.
Determine the annual economic effect of the introduction of the invention.
Situation 8.
According to the report for 1998, the plant had the following characteristics:
Cost of defective products, semi-finished products and others. Of property - 300 ths. Rub.
The cost of rework was - 5 thousand. Rub.
Implemented defective products in the enterprise "Recyclables" - 120 thous. Rubles.
The amount of deductions to workers who allowed the marriage - 10 thousand. Rub.
Amounts collected from suppliers of substandard materials - 150 thousand. Rub.
Determine the magnitude of losses from marriage at the plant in 1998
Situation 9.
In the machine-building enterprise in 1997, the proportion of defective products was 5% of the total output. The commissioning in 1998 of a new assembly line has allowed to reduce the proportion of defective products to 2%. Determine the annual economic effect of reducing the marriage at the factory, taking into account that the volume of production in 1998 remained at the 1997 level, and the volume of defective products in 1997 amounted to 4000 thousand. Rub.
10 situation.
The annual report for 1998 on the Alexander factory radio costs workmanship and operation of VCRs made (by the method of calculation of the ODP):
Metrologicheskogoe ensure equal production - 150 thousand. Rub.
The cost of testing and certification - 20 thousand. Rub.
The cost of marriage in manufacturing - 5 thousand. Rub.
The cost of return of products to customers - 10 thousand. Rub.
Determine the sum of the total cost of quality.
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