Detecting microvariability in type 2 quasars using enhanced F-test

This research has been supported by the Spanish Ministerio de Economia y Competitividad (MINECO) under the grant AYA2014-58861-C3-1. IO acknowledges support from the European Research Council (ERC) in the form of Advanced Grant, COSMICISM. JAdD is grateful for the support from the grant UNAM-DGAPA-PAPIIT IN110013 Program and the Canary islands CIE: Tricontinental Atlantic Campus. AE acknowledges support by the grant AYA2012-30789.