fixed typo

core/src/main/java/hudson/model/Job.java

@@ -910,7 +910,7 @@ public abstract class Job<JobT extends Job<JobT, RunT>, RunT extends Run<JobT, R
      * In any case it will not go more than 6 builds into the past to avoid costly build loading.
      */
     @SuppressWarnings("unchecked")
-    public List<RunT> getEstimedDurationCandidates() {
+    public List<RunT> getEstimatedDurationCandidates() {
         List<RunT> candidates = new ArrayList<RunT>(3);
         RunT lastSuccessful = (RunT) Permalink.LAST_SUCCESSFUL_BUILD.resolve(this);
         int lastSuccessfulNumber = -1;
@@ -946,7 +946,7 @@ public abstract class Job<JobT extends Job<JobT, RunT>, RunT extends Run<JobT, R
     }
     
     public long getEstimatedDuration() {
-        List<RunT> builds = getEstimedDurationCandidates();
+        List<RunT> builds = getEstimatedDurationCandidates();
         
         if(builds.isEmpty())     return -1;