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About 75% of the residents in a town say that they are making an effort to conserve water or electricity. One hundred residents are

 

 


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About 75% of the residents in a town say that they are making an effort to conserve water or electricity. One hundred residents are randomly selected. What is the probability that the sample proportion making an effort to conserve water or electricity is greater than 81%? Interpret your result. Assume the sampling distribution of sample proportions is a normal distribution. The mean of the sample proportion is equal to the population proportion and the standard deviation is equal to pq n

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