A Sample of 15 Clock Radios Is Selected in Sequence

question 2

Essay

A sample of 15 clock radios is selected in sequence from an assembly line. Each radio is examined and judged to
be acceptable (A) or defective (D). The results are shown below. Test for randomness. D D A A A
A A A A A
A A D D D

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Definitions:

Fraternal Twins

Twins that develop from two different eggs fertilized by two different sperm cells, making them genetically unique from each other, similar to regular siblings.

Intelligence

The ability to learn from experiences, adapt to new situations, understand and handle abstract concepts, and use knowledge to manipulate one's environment.

Chessboard

A game board of 64 squares, arranged in an 8×8 grid, used for playing chess.

Recall

The mental process of retrieving information from memory without the aid of cues, often tested as a memory function.