In quantitative analysis to estimate cost function, fourth step is to

write a liner function
write price function
write manufacturing function
plot data

The correct answer is: D. plot data

The fourth step in quantitative analysis to estimate cost function is to plot data. This is done by plotting the cost of production against the quantity produced. The resulting graph is called a cost curve. The cost curve can be used to estimate the cost of production for any given quantity produced.

The other options are incorrect because they are not steps in quantitative analysis to estimate cost function.

  • Option A is incorrect because writing a linear function is not a step in quantitative analysis to estimate cost function.
  • Option B is incorrect because writing a price function is not a step in quantitative analysis to estimate cost function.
  • Option C is incorrect because writing a manufacturing function is not a step in quantitative analysis to estimate cost function.