Women worser at parking than Man?

Many people have questioned the fact whether women are worser at parking than man? In the study conducted by Dr Claudia Wolf from Ruhr University in Bochum, Germany confirmed that women generally takes more time to park and is lacking of accuracy. They were all tested with parallel parking, rear parking, front head parking and their maneuvers were generally lacking than compared the man technique. Research suggest that female drivers generally takes 20 seconds more time when parking.

Source: http://www.telegraph.co.uk/motoring/news/6849247/Women-worse-at-parking-than-men-study-shows.html

Opinion:

I think that this article and research conducted by Dr Claudia is partially right however, we have to take into account the sample size for this research. Dr Claudia only used 60 people to do this research, and the conclusion cannot be generalized. As we sometimes might see several female drivers drive way better than man. 

For Example: Janet Guthrie, Race Car driver (first woman to compete in the Indianapolis 500 and Daytona 500)

Thus, this conclusion cannot be generalized to all Women. This research conducted is an example of Gender Stereotype in the 21st Century.