Mathematics, 01.08.2019 01:30 reginaldboyd28
Suppose that 44% of all americans approve of the job the president is doing. the most recent gallup poll consisted of a random sample of 1400 american adults. a) what is the mean of the sampling distribution? b) what is the standard deviation of the sampling distribution? c) describe the normal approximation for this sampling distribution. d) what is the probability that the gallup poll will come up with a proportion within 3 percentage points of the true 44%?
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Suppose that 44% of all americans approve of the job the president is doing. the most recent gallup...
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