Suppose Electrical Power P Is Given by , Where

question 11

Multiple Choice

Suppose electrical power P is given by , where E is voltage and R is resistance. Approximate the maximum percent error in calculating the power if 140 volts are applied to a 3000-ohm resistor and the possible percent errors in measuring E and R are 5% and 8%, respectively.

• A) 24%
• B) 42%
• C) 38%
• D) 43%
• E) 18%

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Definitions:

Estimated Form

In statistics, it refers to the version of an equation that estimates the parameters of a model based on sample data.

Unit

A standard measurement or quantity used as a basis for counting, comparison, or calculation.

Critical Value

A threshold point on the test distribution that is compared against the test statistic to determine whether to reject the null hypothesis.

Independent Variables

Variables in an experiment that are manipulated or changed by the researcher to investigate their effect on dependent variables.