Replacement Times for TV Sets Are Normally Distributed with a Mean

question 43

Multiple Choice

Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard
Deviation of 1.1 years, (based on data from "Getting Things Fixed," Consumer Reports) .
(i. If you want to provide a warranty so that only 3% of the TV sets will be replaced before the
Warranty expires, the length of warranty you would recommend would be 6.13 years.
(ii. The probability that a randomly selected TV will be replaced after more than 10.0 years is
0) 0505.

• A) (i) and (ii) are correct statements.
• B) (i) is a correct statement but not (ii).
• C) (ii) is a correct statement but not (i).
• D) (i) and (ii) are false statements.

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Definitions:

Gray Matter

A component of the central nervous system consisting primarily of neuronal cell bodies, dendrites, and unmyelinated axons, found in brain regions involved in muscle control and sensory perception.

White Matter

The part of the brain and spinal cord made up of myelinated nerve fibers, which are crucial for the transmission of signals across neurons.

Overweight

A condition characterized by having more body fat than is optimally healthy, which can precede obesity.

Organized Sports

Structured athletic activities that are governed by rules and often involve teams or individual competitors.