please, copy and past Matlab only

4. Load the Matlab data called hahn 1. To load hahn1, type load hahn 1 into your script. Please do the following with the data: . Use the function fit to fit a second order polynomial to the temp and thermex data (it will not fit well).Use temp as your x data and thermex as your y data. Then, use the curve fitting toolbox to create a fit of your choice. Again, use temp as your x data and thermex as your y data. Explain why you chose that fit. Remember - you need to save the toolbox file (it will end with sfit) and submit it with your homework! 4. Load the Matlab data called hahn 1. To load hahn1, type load hahn 1 into your script. Please do the following with the data: . Use the function fit to fit a second order polynomial to the temp and thermex data (it will not fit well).Use temp as your x data and thermex as your y data. Then, use the curve fitting toolbox to create a fit of your choice. Again, use temp as your x data and thermex as your y data. Explain why you chose that fit. Remember - you need to save the toolbox file (it will end with sfit) and submit it with your