Questions from Total Quality Management

Q: Consider the two-component assembly shown in Figure 9-15

Consider the two-component assembly shown in Figure 9-15. Suppose that the specifications for the dimension X2 are 5 ±0.05 cm and those for X1 are 12± 0.15 cm. Find the spe...

Q: Consider the two-component assembly shown in Figure 9-15

Consider the two-component assembly shown in Figure 9-15. Suppose that the mean lengths are given as μ1=14 cm and μ2=8 cm. Assuming that the specifications for Y are 6&Acir...

Q: Four metal plates, each of thickness of 3 cm, are

Four metal plates, each of thickness of 3 cm, are welded together to form a subassembly. The specifications for the thickness of each plate are 3± 0.2 cm. Assuming the weld thickness to be negligible,...

Q: Consider Figure 9-16, which shows the assembly of a

Consider Figure 9-16, which shows the assembly of a shaft in a bearing. The specifications for the shaft diameter are 6± 0.06 cm, and those for the hole diameter are 6.2± 0...

Q: The specifications for a shaft diameter in an assembly are 5±

The specifications for a shaft diameter in an assembly are 5± 0.03 cm, and those for the hole are 5.25 ±0.08 cm. If the assembly is to have a clearance of 0.18 ±0.05 cm, what proportion of the assembl...

Q: Refer to Exercise 9-30. If there is too much

Refer to Exercise 9-30. If there is too much clearance between the hole and the shaft, a wobble will result. Clearances above 0.05 cm are not desirable and cause a wobble. Find the probability of a wo...

Q: In a piston assembly, the specifications for the piston diameter are

In a piston assembly, the specifications for the piston diameter are 12 ±0.5 cm, and those for the cylinder diameter are 12.10 ±0.4 cm. Assume that the natural tolerance limits coincide with the speci...

Q: A logistics firm has identified four operations, which are to be

A logistics firm has identified four operations, which are to be conducted in succession, for an order to be processed. The tolerances (in hours) are shown in Table 9-9. Assume that the tolerances are...

Q: A financial institution wants to improve proposal preparation time for its clients

A financial institution wants to improve proposal preparation time for its clients. Discuss the actions to be taken in reducing the average preparation time and the variability of preparation times.

Q: Measurements on the pH values of a chemical compound are taken at

Measurements on the pH values of a chemical compound are taken at random by two operators. Fifteen samples are randomly chosen, with each operator measuring each sample twice. The data are shown in Ta...