The Electronic Journal of Biotechnology published an article on a comparison of

Question

The Electronic Journal of Biotechnology published an article on a comparison of two yeast extracts – baker’s yeast and brewer’s yeast. Brewer’s yeast is a surplus by-product obtained from a brewery; hence it is less expensive than primary-grown baker’s yeast. Samples of both yeast extracts were prepared at four different temperatures (45, 48, 51, and 54 degrees Centigrade), and the autolysis yield was measured for each of the yeast-temperature combinations. The goal of the analysis was to investigate the impact of yeast extract and temperature on mean autolysis yield.

a) Identify the response variable.

b)  Identify the factors in the experiment

c) List the treatments.

Explanation / Answer

a) Identify the response variable.

Answer: Autolysis yied

b)  Identify the factors in the experiment

Answer : Four different temperatures (45, 48, 51, and 54 degrees Centigrade)

c) List the treatments.

There are 2*4=8 treatments

baker’s yeast 450C ,Brewer’s yeast 450C

baker’s yeast 480C ,Brewer’s yeast 480C

baker’s yeast 510C ,Brewer’s yeast 510C

baker’s yeast 540C ,Brewer’s yeast 540C

Hope this will helps you. thanks :)

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