Based on the following results, which would be the correct use of the formula t = (M1–M2) /SDifference?
Sample 1: Mean = 60; Variance of the distribution of means = 2.
Sample 2: Mean = 50; Variance of the distribution of means = 7.
A) t = (7–2) / 50 + 60
B) t = (60–50) / 4 + 49
C) t = 60–50 / 3
D) t = 60–50 / 9
c
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Hula hoops, streaking, and Pokémon cards are all examples of
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A. reference group. B. primary group. C. out-group. D. social network.