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An on-line retailing firm conducts a study into the number of on-line purchases of footwear made during all of last year. The study wants to

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An on-line retailing firm conducts a study into the number of on-line purchases of footwear made during all of last year. The study wants to determine the proportion of Australians over the age of 25 who purchase footwear on line. The managing director of the on-line retailing firm believes this proportion of Australians is 32%. A random sample of 117 Australians over the age of 25 is selected. If the managing director's claim is true, what is the sample proportion value below which 10% of all sample proportions would exist? Express your answer correct to two decimal places

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