Question #1 asked you to consider five different types of randomized design for an experiment with n=12 units (Bernoulli trial, Completely randomized experiment, Block randomized experiment with J=2 and nt(j)=3 for all blocks, Block randomized experiment with J=6 and nt(j)=1 for all blocks, and a Paired randomized experiment).

Order these five different designs in terms of how efficient you would expect them to be for estimating the average causal effect (list the most efficient design first, the least efficient last), and assuming that any possible blocking factors are related to the outcome of interest. Use one sentence to justify your ordering, using the answer to the homework question to support your ordering.