Jolene Is a Computer Professional with Lots of Knowledge About

question 45

Multiple Choice

Jolene is a computer professional with lots of knowledge about computer maintenance. Jolene tells her clients that all of the following is true about computer maintenance EXCEPT: ____.

• A) cleaning mechanical mice can eliminate jerky or erratic movement of the mouse pointer
• B) many inkjet printers have a self-cleaning mode
• C) replacing a keyboard involves replacing many complicated hardware components
• D) exposure to light can damage toner cartridges

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Definitions:

Probability

The measure of the likelihood that an event will occur, quantified as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Statistic

A numerical value calculated from a sample of data, used to estimate characteristics of the population from which it is drawn.

Critical Value

A threshold value in statistical testing which the test statistic must exceed to reject the null hypothesis.

Population Parameter

A measure that signifies a trait of a whole population, like its average or standard deviation.