Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_5 ( sample_size INTEGER, date VARCHAR, republican VARCHAR, margin_of_error VARCHAR )

### Question ###
What is the sample size of the poll taken on Dec 13-15, 2007 that had a margin of error of more than 4 and resulted with Republican Mike Huckabee?

### Accurate SQL ###

SELECT AVG(sample_size) FROM table_name_5 WHERE republican = "mike huckabee" AND margin_of_error > 4 AND date = "dec 13-15, 2007"