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Exercise 2 (A). Sample size E fnfonnatfon. You own a coffee shop in Town Hall Arcade. A nearby competitor that sells tea has undertaken a

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Exercise 2 (A). Sample size E fnfonnatfon. You own a coffee shop in Town Hall Arcade. A nearby competitor that sells tea has undertaken a survey that showed that 95% of adults passing through the arcade prefer coffee over tea. Find the number of adults that must be surveyed in order to be 95%(1.96) confident that the sample percentage is in error by no more than 3 percentage points (pp) (2 marks). A = (lazFq " 52 AUSTRALIAN INSTITUTE OF It'fGlIEll EDUCATION

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