Table: list of big time rush episodes
Question: Is there a difference in the average US viewership numbers between episodes written by Scott Fellows and those written by other writers? Answer with only 'Yes' or 'No' that is most accurate and nothing else.
Step 1 (Operation, Grouping): written by
Step 2 (Operation, Indexing): written by
Step 3 (Reasoning, Aggregating): AVG, us viewers (millions)
Step 4 (Reasoning, Arithmetic): comparison, average us viewers
Answer: Yes