Heat treatment to kill fruit flies on mangoes

Use this diagram to introduce the idea of estimating the parameters to get the logistic curve 'close' to the data.

Drag the two red arrows to change the logistic curve's parameters.

Click Best fit to show the best (maximum likelihood) estimates. State that a computer will find the best estimates but the underlying details are fairly advanced.

In an experiment to assess the effectiveness of heat-treatment of mangoes as a method of killing fruit fly eggs and larvae, several infested fruit were heat-treated at temperatures ranging from 39 to 46 degrees Celsius. The fruit fly eggs surviving at each temperature were counted.