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A polling firm conducts a poll to determine what proportion A of voters in a given population…

A polling firm conducts a poll to determine what proportion A of voters in a given population will vote in an upcoming election. A random sample of n =-250 was taken from the population, and the proportion answering yes was 0.62. Assess the hypothesis H0 : A = 0 65 and construct an approximate 0.90-confidence interval for θ