Change to_i method to to_f method

In order to stop showing 'Not enough data' in cycle analytics view

Remove puts from the file

app/serializers/analytics_stage_entity.rb

@@ -9,7 +9,7 @@ class AnalyticsStageEntity < Grape::Entity
   expose :description
 
   expose :median, as: :value do |stage|
-    # median returns a BatchLoader instance which we first have to unwrap by using to_i
-    !stage.median.to_i.zero? ? distance_of_time_in_words(stage.median) : nil
+    # median returns a BatchLoader instance which we first have to unwrap by using to_f
+    !stage.median.to_f.zero? ? distance_of_time_in_words(stage.median) : nil
   end
 end