A report provided an overview of the complaints about airlines received by the Department of Transportation. The table below gives the number of complaints received by type of complaint for the years 2014 and 2015. Type of Complaint 2014 Number of Complaints Received 2015 Number of Complaints Received Flight Problems 4,404 5,606 Baggage Handling 1,528 2,050 Reservations, Ticketing, Boarding 1,276 1,807 Customer Service 1,101 1,728 Fares 699 1,300 Other 2,257 2,769

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.