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The number of minutes a customer spends on hold on a customer service line is normally distributed with a mean of 13.6 minutes and a standard deviation of 1.7 minutes. 38. Find the percent of customers on hold for at least 12 minutes. 39. Find the percent of customers on hold in between 11.8 minutes and 14.1 minutes. 40. Find the percent of customers on hold for less than 13 minutes. 41. If a call center receives 2000 calls, how many customers will be on hold for more than 12 minutes? 42. If a call center receives 100,000 calls, how many customers will be on hold for less than 11.8 minutes