\f[1:] Use MegaStat or Min'rtab to calculate estimated seasonal indexes and trend. {Round your answers to 3 decimal places.} Qtrl Qtr2 Qtr3 er4 Index Index Index Index llllllll Id} In which quarters are shipments highest? Lowest? {You may select more than one answer. lililiclr the box with a check mark for the correct answer and double click to empty the box for the wrong answer.} Highest