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Chapter 3: Experimental design - Setting up a fair trial


Interpreting the data

Once the results have been analysed a conclusion needs to be made. The aim is to see if the hypothesis is support by the analysis. If so, then the hypothesis is accepted; otherwise, the hypothesis is rejected and a new statement made.

Any conclusion made needs to be based only on the results at hand and can include methods of improving the experimental design and how the methods used could be improved.

Here are the results from a diet trial. How would you interpret this data?

Example

  FCR Cost/kg Food cost/kg
(calculated by FCR x cost/kg)
Diet A
 1.25 $1.65/kg $2.06
Diet B 1.3 $1.50/kg $1.95

By comparing the FCR's for these two diets and taking into account the cost/kg of each, it is evident that Diet B is the most efficient diet.

Conclusion: The most cost-effective diet is Diet B.

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