Instruction 10-11 A Quality Control Engineer Is in Charge of the Manufacture

question 7

Short Answer

Instruction 10-11
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 Instruction 10-11,construct a 95% confidence interval estimate of the difference in proportion between the Kohler and Russell disks that are defective.

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Definitions:

Insertion Point

The insertion point is a cursor in a graphical user interface that indicates where text, characters, or other data will be inserted within a file or document.

F2

A function key used to rename a selected file or folder in many operating systems and applications, and also serves other functions in different contexts.

Field

A specific area allocated for a particular piece of data in databases or data collection forms, such as name, address, or phone number.

Layout View

A feature in software that allows users to visually design and adjust the layout of elements in a document or presentation, often in real-time.