Will Ola's default IndexOptimizer job update my stats?

Question

I just installed Ola Hallengren's MaintenanceSolution.sql maintenance scripts. After looking at the output of the log generated by the IndexOptimize - USER_DATABASES job, I'm concerned that it's not going to update the stats. The reason for my concern is that I see @UpdateStatistics = NULL in the parameters listed in the log output:

Date and time: 2013-07-16 13:58:24
Server: XXXXX
Version: 10.0.5512.0
Edition: Standard Edition (64-bit)
Procedure: [PROD-PH].[dbo].[IndexOptimize]
Parameters: @Databases = 'USER_DATABASES', @FragmentationLow = NULL, @FragmentationMedium = 'INDEX_REORGANIZE,INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE', @FragmentationHigh = 'INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE', @FragmentationLevel1 = 5, @FragmentationLevel2 = 30, @PageCountLevel = 1000, @SortInTempdb = 'N', @MaxDOP = NULL, @FillFactor = NULL, @PadIndex = NULL, @LOBCompaction = 'Y', @UpdateStatistics = NULL, @OnlyModifiedStatistics = 'N', @StatisticsSample = NULL, @StatisticsResample = 'N', @PartitionLevel = 'N', @MSShippedObjects = 'N', @Indexes = NULL, @TimeLimit = NULL, @Delay = NULL, @LockTimeout = NULL, @LogToTable = 'Y', @Execute = 'Y'
Source: http://ola.hallengren.com

The motivation behind this is that there is a query that runs once an accounting period (every four weeks) for the date range of the period. The query takes over 20 minutes if I do not manually run sp_updatestats. The query takes less than 5 seconds if the stats are current. The table in question has ~ 1.6M rows but is only growing by ~20K a week. As such, it is nowhere near the 20% auto threshold for a given four week period. Several other tables have a similar growth pattern.

My plan is to schedule this job to run once a week. Will it update the stats as required?