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The development of a railroad system weakened connections between the Northwest and the South.
A method of exchanging digital messages across the Internet using devices, allowing users to send and receive messages electronically.
Null Hypothesis
A statement or hypothesis that suggests there is no statistical significance in a set of given observations, essentially a default or initial hypothesis.
Alternative Hypothesis
The hypothesis that proposes a significant difference exists between groups or variables, contrasting the null hypothesis.
Unemployment Rate
The unemployment rate is the percentage of the labor force that is jobless and actively seeking employment.
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