An Assembly Line Is Operating Satisfactorily If Fewer Than 3

question 2

Multiple Choice

An assembly line is operating satisfactorily if fewer than 3% of the phones produced per day are defective. To check the quality of a dayʹs production, the company randomly samples 10 phones
From a dayʹs production to test for defects. Define the population of interest to the manufacturer.

• A)the 10 phones sampled and tested
• B)the 10 responses: defective or not defective
• C)the 3% of the phones that are defective
• D)all the phones produced during the day in question

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Definitions:

Statistically Significant

A term used to describe a result that is unlikely to have occurred by chance alone, according to a predetermined threshold of probability.

Variation

The occurrence of differences among individuals within a population, due to genetic differences or environmental factors.

Participants

Individuals who take part in a research study or experiment, providing data for analysis.

Standard Deviation

A statistical measure of the dispersion or variability within a data set, indicating how spread out the numbers are from the mean.