use r studio pls

Problem 2. This problem uses the flights data set in the nycflights13 package. For each question in part (a), create a tibble and print out the first few rows. (a) Find flights that: i. Had an arrival delay of two or more hours ii. Flew to Houston (IAH or HOU) iii. Were operated by United, American, or Delta iv. Departed in summer (July, August, and September) V. Arrived more than two hours late, but didn't leave late vi. Departed between midnight and 6 a.m. (inclusive) (b) How many flights have a missing dep_time? (c) What other variables have missing values? Hint: use is.na() or anyNA()