In the quest to learn Ukulele, one of my main resources is The Daily Ukulele by Jim Beloff. This book has a version of "Hey Jude" in it but it's transposed to C, which is the easiest key for playing but not the easiest for me to sing. So I decided to learn it in the same key that the Beatles recorded it, which I think is F.
Working from an existing guitar tab, I have mapped the chords to Ukulele and worked out what some of the slashed chords should be by ear. At some point I may record a video of how to play this tune, but in the meantime, here is my Ukulele Tab for Hey Jude in F.