The soft drink cups at a certain fast food restaurant have tickets attached to them...

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The soft drink cups at a certain fast food restaurant have tickets attached to them Customers peel off the tickets to see whether they win a prize The proportion of tickets that are winners is p 0 30 A total of n 85 people purchase soft drinks between noon and 1 00 PM on a certain day Let be the proportion that win a prize Find the mean and standard deviation of sample proportion P Formula p 1 The mean of the sampling distribution of population proportion 0 1 is denoted by Hp p 2 The standard deviation of the sampling distribution of is denoted by p 1 P He and equals the Op is

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