Examlex
An over-the-air radio station that plays music for free is a(n) _____ good, while a streaming radio service that charges a subscription fee is a(n) _____ good.
Population Mean
The average of all the values in a population, representing the central point around which the data points in the population are distributed.
Two-Tailed Test
A statistical test where the significance area is on both ends of the distribution, examining if a sample falls outside a specific value range on either side.
Null Hypothesis
A hypothesis used in statistics that proposes no significant difference or effect, serving as the default assumption to be tested against an alternative hypothesis.
Test Statistic
A value determined from sample data, used to make decisions on a hypothesis in statistical testing.
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