Suppose That I Suspect That Running My Ceiling Fan Stirs

question 40

Multiple Choice

Suppose that I suspect that running my ceiling fan stirs up dust and causes my table to become dusty.How could I use the method of concomitant variations to confirm this?

• A)Temporarily replace the table with a different table to see whether the new table also becomes dusty.
• B)Remove the ceiling fan for a day to see whether the table still becomes dusty.
• C)Observe whether running the fan for longer/shorter periods of time corresponds to greater/lesser amounts of dust on the table.
• D)Vacuum the carpet and then observe whether the table still becomes dusty.
• E)Test the air quality while the fan is running to see whether it has dust in it.

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Definitions:

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter.

Confidence Interval

A range of values, derived from the sample statistics, that is likely to contain the value of an unknown population parameter.

Population Parameter

A numerical value summarizing the whole population, commonly used in statistics, such as the mean or standard deviation.

Confidence Interval

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, with a specified level of confidence.