A bank conducted a survey to determine the amount of time its employees spend watching TV. From 23 responses, the mean and standard deviation were found to be 46 and 16 minutes, respectively. Assuming the data was collected through a random sample and that the amount of time spent watching TV is approximately normally distributed, calculate a 98% confidence interval estimate of the average amount of time the banks's employees spend watching TV. State only the upper bound (in minutes), correct to three decimal places.