TABLE 10-12 A Quality Control Engineer Is in Charge of the Manufacture

question 69

Short Answer

TABLE 10-12
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 10-12, the value of the test statistic is ________.

---

Definitions:

Medical Doctor

A trained professional who practices medicine, which involves promoting, maintaining, or restoring health through the study, diagnosis, prognosis, and treatment of disease, injury, and other physical and mental impairments.

Clinical Psychologist

A professional specializing in diagnosing, treating, and preventing mental, emotional, and behavioral disorders through various forms of therapy.

Psychiatrist

A medical doctor specializing in the diagnosis, treatment, and prevention of mental health and emotional disorders, capable of prescribing medication.

Theoretically Diverse

Characterized by a wide range of theories or ideas in a particular field or subject, reflecting a broad spectrum of viewpoints.