TABLE 10-13 A Quality Control Engineer Is in Charge of the Manufacture

question 93

True/False

TABLE 10-13
A quality control engineer is in charge of the manufacture of computer disks. Two different processes can be used to manufacture the disks. He suspects that the Kohler method produces a greater proportion of defects than the Russell method. He samples 150 of the Kohler and 200 of the Russell disks and finds that 27 and 18 of them, respectively, are defective. If Kohler is designated as "Group 1" and Russell is designated as "Group 2," perform the appropriate test at a level of significance of 0.01.
-Referring to Table 10-13, the same decision would be made with this test if the level of significance had been 0.05 rather than 0.01.

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Definitions:

Radial Symmetry

A form of symmetry found in some organisms, where body parts or structures radiate from a central point, allowing for multiple planes of symmetry.

Mantle

The layer of the earth between the crust and the outer core, involved in tectonic movements and volcanic activity.

Spiny Skin

Characteristic of echinoderms, a group of marine invertebrates including sea stars and sea urchins, featuring a unique external skeleton covered in hard plates and spines.

Bilateral Symmetry

A body plan in which an organism can be divided into two identical halves along a single plane, typical of most animals, including humans.