matlab help

Q.4. Unknown fluid (30 Points) Following table present an experimental measurements describing the behavior of an unknown fluid. Table-1: Shear stress vs Shear rate of an unknown fluid Shear stress 5 9 23 48 95 (dyne/cm^2) Shear rate 0.1 2 8 96 1007 (178) 4.A. Use MATLAB to plot the shear stress vs shear rate and determine and whether the fluid pseudoplastic, Newtonian, or dilatant. (20 Points) 4.B. Estimate the viscosity, or the apparent viscosity for this fluid using the following methods. (10 Points) Method-1 Use the MATLAB command scatter (x,y) to make a scatter plot of the data. In the plot window, select basic curve fitting from tools. Next select a linear fit and show the equation Method-2: Use the 'polyfit (x,y.n) with n=1 to estimate viscosity. Method-3. Use 'diff(y diff(x) where x is the vector for shear rate and y is the vector for shear stress to estimate viscosity. 4.C. Present the results with a table. How do they compare and differ - describe in one to two sentences? Q.4. Unknown fluid (30 Points) Following table present an experimental measurements describing the behavior of an unknown fluid. Table-1: Shear stress vs Shear rate of an unknown fluid Shear stress 5 9 23 48 95 (dyne/cm^2) Shear rate 0.1 2 8 96 1007 (178) 4.A. Use MATLAB to plot the shear stress vs shear rate and determine and whether the fluid pseudoplastic, Newtonian, or dilatant. (20 Points) 4.B. Estimate the viscosity, or the apparent viscosity for this fluid using the following methods. (10 Points) Method-1 Use the MATLAB command scatter (x,y) to make a scatter plot of the data. In the plot window, select basic curve fitting from tools. Next select a linear fit and show the equation Method-2: Use the 'polyfit (x,y.n) with n=1 to estimate viscosity. Method-3. Use 'diff(y diff(x) where x is the vector for shear rate and y is the vector for shear stress to estimate viscosity. 4.C. Present the results with a table. How do they compare and differ - describe in one to two sentences