Form an estimated regression model and find the estimates using OLS.

A biologist wants to test if there is any linear relationship between the amount of fertilizer supplied to aubergine plants and the subsequent yield of aubergines. She selected 2 aubergine plants of the same variety and treated them weekly with a solution in which x grams of fertilizer were dissolved in a fixed quantity of water. The yield, y kilograms of aubergines were recorded. 

Aubergine x y
Plant A 1 1.5
Plant B 3.9 4.4


  1. Form an estimated regression model.
  2. Find the estimates using OLS.

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