A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 90% confidence interval that results from examining 692 customers in one fast-food chain's drive-through has a lower bound of 169.9 seconds and an upper bound of 173.3 seconds. What does this mean?

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take