Im working on an experiment for my A level course (UK) that will determine the effects of different respiratory substrates on yeast population growth. Im using 4 sugars; fructose, glucose, sucrose and lactose. Using a haemocytometer I'll find the size of the yeast population before the sugar is added and the growth 1 week after.
I have a choice of 3 statistical tests to choose from: the standard error test; the chi-squared test; and the Mann-Whitney U test. The standard error seems to be the best one to me, but i thought it could only be used for large samples ( at least above 10)?
You can use the standard error test. The standard error test may be used for small sample sizes (less than ...
The solution identifies the statistical test to use. The standard errors which seem to be best are determined.