The customer service center in a large new york department store has determined that the amount of time spent with a customer ab
out a complaint is normally distributed, with a mean of 9.5 minutes and a standard deviation of 2.4 minutes. what is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (round your answers to four decimal places.)
1 answer:
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We solve as follows:
*First: We determine the percentage of store purchases:
*Second: The ratio is obtained as follows:
So, the ratio is 11 to 9 purchases.