A theory
There are a number of ways of referring to a schedule. Some people avoid the word altogether and go with "agenda", "itinerary" or "timetable". Others go with the method of tracking and refer to "calendar" or "daytimer". As for the original flavor itself, there are two camps:
Sked-jewel vs. Shed-jool.
What I would like to know is the personality types behind these pronunciations. I know of but a couple of folks who say "shed-jool", and both of them are the types to remain rigourously on task. They make their plans, stick to them, and by golly if they aren't going to get done before they said they would. Furthermore, they need to know everyone else's "shed-jool" to be sure to account for them in their own. After all, one simply cannot plan to head out to the hardware store to get some lumber if the car is in use by the spouse, right?
As for me, I fall into the second camp, pronouncing it "sked-jewel", and I don't really give a rat's ass. Neither do other people I know who refer to "sked-jewels", which is what brought about this line of thought to begin with.
Alas, my sample size is retardulously small. A study just isn't a study without the teeming masses participating, you know. And so with that, I ask: is there a connection? Do you, or anyone you know, say "sked-jewel" yet meticulously plan around it, or do you say "shed-jool" and then toss it out the window at the first opportunity?