Ranges within and IF statement

I am trying to create a if statement that when enter a number lower than "0" it returns a value of "0" and anything higher than zero returns "50"

(J12)

=IF(J15<=0,"0","50") but I want it have a range so when data is enter in any cell in the "J" column this will update. Test file.xlsx


I want this.
=IF(J15:J67<=0,"0","50") just not writing the correct syntax


please review document