Sample proportion of adults who respond yes, is approximately normal,
sample proportion of adults who respond yes, is approximately normal, how many more adult Americans does the researcher need to sample if
(a) 10% of all adult Americans support the changes?
(b) 20% of all adult Americans support the changes?
(a) 10% of all adult Americans support the changes?
(b) 20% of all adult Americans support the changes?
Answer
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(a) To say the sampling distribution of pˆ is approximately normal, we need np (1−p) ≥10 and…View the full answer
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