Linear regression tutorial

On the third day of the “Practical Statistics for the Life Sciences (2020)” course, we will have three tutorials on data linear regression, based on different datasets:

1) Breast cancer dataset

2) The fish dataset:

In this experiments 96 fish (dojofish, goldfish and zebrafish) were placed separately in a tank with two liters of water and a certain dose (in mg) of a certain poison EI-43,064. The resistance of the fish a against the poison was measured as the amount of minutes the fish survived upon adding the poison (Surv_time, in minutes). Additionally, the weightt of each fish was measured.

In this tutorial, we will study the association between dose and survival time by using a linear regression model.

  • Exercise: Exercise_2
  • Data: “”
  • Solution: Solution_2

#### 3) The FEV dataset:

The FEV, which is an acronym for forced expiratory volume, is a measure of how much air a person can exhale during a forced breath. In this dataset, the FEV of 606 children, between the ages of 6 and 17, were measured. The dataset also provides additional information on these children: their age, their height, their gender and, most importantly, whether the child is a smoker or a non-smoker. The goal of this experiment was to find out whether or not smoking has an effect on the FEV of children.

  • Exercise: Exercise_3
  • Data: “”
  • Exercise: Exercise_3