Which Statistic Is Used to Test a Global Hypothesis About

question 45

Multiple Choice

Which statistic is used to test a global hypothesis about a multiple regression equation?

• A) t-statistic
• B) z-statistic
• C) (chi-square statistic)
• D) F

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Definitions:

Poisson Random Variable

Represents the number of events occurring in a fixed interval of time or space, assuming that these events happen with a known constant mean rate and independently of the time since the last event.

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon, used in probability and statistics to model randomness.

Expected Value

The anticipated value of a variable, calculated as the sum of all possible values each multiplied by the probability of its occurrence.

Variance

An indicator of the distance between values in a dataset, reflecting how much each value deviates from the average.