The mean preparation fee H&R Block charged retail customers in 2012 was $193. Use this price as the population mean and assume the population standard deviation of preparation fees is $50. Round all values to 4 decimal places i.e. 0.6537 What is the probability that the mean price for a sample of 30 H&R Block retail customers is within $8 of the population mean? Answer:

The mean preparation fee H\&R Block charged retail customers in 2012 was $193. Use this price as the population mean and assume the population standard deviation of preparation fees is $50. Round all values to 4 decimal places i.e. 0.6537 What is the probability that the mean price for a sample of 30 H\&R Block retail customers is within $8 of the population mean