Statistically designed experiments include comparing treatments and assigning subjects randomly to treatment groups while maintaining blinding to prevent bias.
Two essential features of all statistically designed experiments are the comparison of several treatments and chance to assign subjects to treatments. In a well-designed study, subjects are randomly assigned to different treatment groups to eliminate lurking variables, with one group acting as a control group that receives a placebo treatment. The double-blind method ensures that both researchers and subjects are unaware of who is in the control or experimental group to prevent bias.
https://brainly.com/question/51377968