My dependent variable is classified in categories as 5-10, 10-15 . Which is the best regression model for this kind of analysis.my dependent variable asks the participant of the survey to mark the percentage of turnover due to innovations and the options are (1)less than 1% (2) 1%-5% (3)5%-15% (4) 15%-30% and(5) above 30% . Now please please help me to find the correct regression model, should I dummy code them and use them in linear regression or I should dummy code them and use for multinomial. my independent variables are all in likert scale. please help
For the dependent variable, I would start with ordinal logistic regression and see if the assumptions are met. There are various sorts of ordinal logistic, but the most common (and the place I'd start) is proportional odds logistic.
Likert scaled IVs are interesting. There's no common method, but I've sometimes used optimal scaling with some good results.
All then above is quite general - it may not be good with your particular data set. You might want to hire a consultant.