Before Time Zones Were Created in the 1880s, One Could

question 10

Multiple Choice

Before time zones were created in the 1880s, one could encounter ________ time standards on a rail trip across the United States.

• A) 1
• B) 5
• C) 7
• D) 10
• E) more than 20

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Definitions:

Replicable

Characteristics of a study or experiment that allow it to be duplicated or repeated by other researchers to verify findings.

Inert Pill

A pill that contains no active ingredients, often used in medical studies as a control to test the effectiveness of treatments.

Statistically Significant

A term indicating that the result of a study or experiment is unlikely to have occurred by chance alone, suggesting a real effect or difference.

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation, that can be tested through experimentation or observation.