To Be Completely Accurate, a Model Railroad Needs to Scale

question 46

Essay

To be completely accurate, a model railroad needs to scale down speed in addition to size. Rail speed limits depend on track quality, but the highest speed limit in the U.S. is 200 mph. What should the highest speed be for a 1:48 O scale train in feet per second? Round to the nearest tenth.

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Definitions:

Type I Error

An erroneous denial of a valid null hypothesis, commonly called a "false positive."

Null Hypothesis

A hypothesis used in statistics that suggests there is no significant difference or effect, typically to be tested against an alternative hypothesis.

Alternative Hypothesis

The hypothesis that proposes a difference or relationship exists between two variables, contrasting the null hypothesis.

Population Parameter

A numerical value that represents a characteristic of a population.