Minnesota. The beautiful state we live in. If you're from here, you might pronounce "Minnesota" with more emphasis on the "o" than someone from another state. Different dialects of English are spoken all around the United States and the world. A dialect is a difference in the same language between one place and another. The differences can be in how you say a word or what word you call something. For example, different dialects use different words for things like carbonated beverages: pop, soda, Coke, and tonic.
Speakers of dialects other than the most common version are not saying anything wrong. They are following patterns in their speech, just as the "mainstream" dialect of English does. Just because someone talks a little slower than you does not mean they are a little slower. Dialects are fun and interesting. They make people different. Different is good.