Obviously this discussion is a minefield. But there is some merit in asserting some relations there. In The Netherlands, Iranian and Afghani immigrants are often of a more privileged descent than Moroccan and Turkish immigrants, because of the reason of their migration. Moroccans and Turks generally migrated for manual labor, where Irani and Afghans usually fled religious oppression.
Of course this does not mean Dutch Iranians are smarter than Dutch Moroccans, but it could mean there might be more smart/entrepreneurial Iranians than Moroccans in The Netherlands.
These statistics might die out very quickly though, for example Turks are often already second or third generation, so many have been born in the privilege of The Netherlands.
Perhaps similarly, the second world war cost us a huge percentage of Jewish people, being privileged has meant having a larger chance of survival through moving to less dangerous countries (like the U.S.).
It doesn't mean Jewish people are smarter, it might mean though that you could find a bit more smart Jews in their population. Of course the second world war has already been a long time, so the effect might already be gone.