Find probabilty-mean spent amount will be population mean

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At the end of the Halloween Festival organizers evaluated that family of participants spent in average $50.00 with standard deviation of $15.00. If 49 participants (49 = size of the sample) are chosen randomly, what is the probabilty that their mean spent amount will be in $6 of population mean? (mean+/-6)

Reference no: EM13110044

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