daily sales at a hardware store are normally distributed with a mean of $3500 and a standard deviation of 240.a) A random sample of 16 days sales is selected and the mean is recorded as $3320, should this be of concern to management? why or why not? b)If 62% of daily sales are greater than x, find x. C) find the inter-quartile range. d)If on a randomly selected day sales are more than $4150, would that daily sales figure be considered a potential outlier? why or why not? e) Find the probability that sales on a randomly selected day are at most $3445.