When n 2 30 and the population standard deviation is not known, what is the appropriate distribution? А. Р В.r C. t D. z Civen n = 80 Y - 765 a

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19. When n > 30 and the population standard deviation is not known, what is the appropriate
distribution?
А. Р
В.r
С.t
D. Z
21
:0. Given m = 80 Y - 765 a
Transcribed Image Text:19. When n > 30 and the population standard deviation is not known, what is the appropriate distribution? А. Р В.r С.t D. Z 21 :0. Given m = 80 Y - 765 a
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