Read the T Statistic from the T Distribution Table and Choose

question 78

Multiple Choice

Read the t statistic from the t distribution table and choose the correct answer. For a two-tailed test with a sample size of 20 and using α = .20, t =

• A) 1.341.
• B) 1.337.
• C) .865.
• D) .866.

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Definitions:

Permutation

In an experiment we may be interested in determining the number of ways n objects may be selected from among N objects when the order in which the n objects are selected is important. Each ordering of n objects is called a permutation and the total number of permutations of N objects taken n at a time is PNn = n! / (N - n)! for n = 0, 1, 2, . . . , N.

Union

In mathematics, specifically in set theory, the union of a collection of sets is the set of all distinct elements that are in any of those sets.

Intersection

A mathematical term describing the point or set of points where two lines, curves, shapes, or surfaces meet.

Event

A collection of sample points.