Complete the following exercises based on the flights tibble from the nycflights13 package:

Sort flights by carrier and within each carrier, sort flights by distance. Find all the flights that arrived at least one hour late but did not depart late. Use the between( ) operator within a filter( ) function to find all the flights that were scheduled to depart between 12:00am and 4:00am. (Note: in the data, 12:00am is represented as time 000) In 2013, what was the average departure delay for flights that departed late (exclude flights that departed on time or early)? Add a row of values to flights using the add_row() function. Your new row should contain data for each variable (data you make up) and should not be empty.