As part of a quality improvement program, a mail-order company is studying the process of filling customers' orders. According to company standards, an order is shipped on time if it is sent within three working days of the time it is received. The company claims that 87% of the orders are shipped on time. In a random sample of 100 orders received in the past month, an audit reveals that 86 of these orders were shipped on time. The proportion above is 86/100, Is this proportion a parameter or a statistic. Construct a 98% confidence interval for p, the true proportion of all the month's orders that were shipped on time.