Statistics for an Athletic Association

My:
object Stat {
def stat(strg: String): String= {
  val l: List[Int] = strg.split(", ").toList.map((x: String) => {
    val str = x.split('|')
    (str(0).toInt * 3600+str(1).toInt * 60+str(2).toInt)})
  def makeReadable(sec:Int):String = {
    String.format("%02d|%02d|%02d", sec / 3600, sec % 3600 / 60, sec % 60);}
  def eval(list:List[Int]):String={
    if(list.nonEmpty)
      if(list.length%2==1)
      "Range: "+ makeReadable(list.max-list.min)+" Average: "+makeReadable((list.sum)/list.length)+ " Median: "+makeReadable(list.sortWith(_>_)(((list.length/2))))
      else "Range: "+ makeReadable(list.max-list.min)+" Average: "+makeReadable((list.sum)/list.length)+ " Median: "+makeReadable( (list.sortWith(_>_)(list.length / 2 - 1) + list.sortWith(_>_)(list.length / 2))/2)
    else ""
  }
  eval(l)
}
}