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(a)The spokesperson from the Weather Forecast Department, Ministry of science and Technology asserts that more than 70% of factories at the prime industrial area meet
(a)The spokesperson from the Weather Forecast Department, Ministry of science and Technology asserts that more than 70% of factories at the prime industrial area meet the antipollution standards. An antipollution advocate wants to validate the above statement. He then takes sample of published data from 100 factories randomly selected from the same industrial area, and finds that 72 of them meet the antipollution standards. Test at the 1% level of significance.
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