The Tributary System Was a Practice in Which

question 19

Multiple Choice

The tributary system was a practice in which

• A)the emperor traveled to foreign countries to pledge his allegiance to them
• B)independent countries acknowledged the supremacy of the Chinese emperor
• C)the emperor made an annual trip down the Grand Canal
• D)the emperor made a pilgrimage to please the gods and the ancient ancestors
• E)China built new canals for transportation and irrigation

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Definitions:

Z-score

A numerical metric indicating how a particular value compares to the average of a dataset, expressed by the number of standard deviations it lies from the mean.

P-value

The likelihood of encountering experimental results that are at least as significant as the actually observed results, given the null hypothesis is assumed to be accurate.

Pooled Variance

A method used in statistics to combine variances from two or more groups to estimate a common variance when they are assumed to be equal.

Independent Samples

Samples drawn from two populations in such a way that the selection of a sample from one population does not influence the selection of a sample from the other population.