when do you use paired t tests? what is the difference between an independent paired t test and an irradiated half what to change in irradiation why do you need paired t tests what irradiated half do we use can you have 2 irradiated leaves in a row should i use irradiated control in photosynthesis experiment what would be the difference between an independent paired t-test and an irradiated half what is the purpose of an paired t-test paired t-test of photosynthesis which test should be used for photosynthesis how many circles in the half of leaf what would irradiate one half of a leaf? which t-test to use for photosynthesis how to test photosynthesis which experiment is used to compare photosynthesis and irradiation how to compare the effects of irradiation on the leaves how many circles of light per half of a leaf how can i irradiate half of a leaf without a control how to determine if the experiment is an independent paired t test