The phrase "assuming for example" is correct and usable in written English.
It can be used when introducing a hypothetical situation or scenario to illustrate a point or argument.
Example: "Assuming for example that the project is completed on time, we can move forward with the next phase."
Alternatives: "for instance" or "let's say".
In my model I am assuming, for example, that the Physical Education teacher has experience in dance.
And while it is evidently easier to identify malefactors after an attack than it is to predict their activities, many experts cautioned against assuming, for example, that today's attacks were the handiwork of Osama bin Laden.
They complained, as did some Republicans, that the budget achieved its goals through fiscal trickery, by not fully accounting for war spending and by assuming, for example, that domestic spending would hold steady from 2009 to 2013.
Delay estimates previously have used a straightforward accounting method, assuming, for example, that if a plane is delayed 10 minutes and it had 100 passengers, then the delay to passengers would simply be 1,000 minutes.
By assuming, for example, a 9-to-5 workday Monday through Friday, methods that rely on labeling might average positions between 8am and 6pm and call that home while averaging positions between 9 and 5 and calling that work.
In his attempt to explain the significance of these Ice Age objects, he developed a theory of "sympathetic magic," assuming, for example, that certain images were made in order to promote fertility or a successful hunt.
Assume, for example, that you reversed the current buzz codes.
One cannot assume, for example, that higher tax rates always result in higher tax revenues.
It had long been assumed, for example, that aerobic power doesn't vary greatly in adults.
The tests always assume, for example, that terrorists want to take over the control room of a plant.
You assume, for example, that the Ossies were thrilled to get to the West, but many were at best ambivalent.
