Parameters are only single-select entities.
Use two params to set the begin- and end-range values.
Make one calc that does RANK of whatever you are looking to display:
This will assign 1 to the top one, and 2 to the second one, etc.
Then you would make another calc like this:
IF [rank calc] >= [Start of Range parameter] and [rank calc] <= [End of Range parameter] then 1 else 0 END
Put that on your filter shelf and select for value = 1.