Which is good one among University of North Texas , Denton or San Francisco state University for MS in CS?

I have done my graduation in Mechanical Engineering. But I look to do Masters in Data Science related courses. Which courses and universities should I look for?

Since pure Data Science courses will hard to get admit into because of my background not related to the field

Do Professional LOR’s require any stamp from the company?

Do we need to get the lor sealed / stamped or is it not required and can we submit a pdf?

My chances for North eastern univ , Boston For ms in CS fall 2022 pls tell me

B.E.: ECECgpa:8.0Ielts:8Gre:299(144v,155q,4awa) 3 projects2 months internship in web development And also how is

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