I have an outcome from a biological experiment, where I have counted the number of dead cells upon a mutation. For example, in once case - out of 120 cells we saw 16% of the dead cells, but our expectations were around 10%. So to check the difference is significant I have performed 'z-test for changes in proportions'.
But my question is, whether is it possible to do ch-squared test on a single experiment like the above? I have Googled a lot, but all examples I see use a contingency table or involve multiple variables.