Solutions Statistics

A randomized block design has five different age groups as blocks, and members of each block have be

Question: A randomized block design has five different age groups as blocks, and members of each block have been randomly assigned to the treatment groups shown here. For these data, use the 0.05 level in determining whether the treatment effects could all be zero. Using the 0.01 level, evaluate the effectiveness of the blocking variable.

	Treat1	Treat2	Treat3	Treat4
BlockA	51.2	50.3	47.2	42.0
BlockB	41.0	37.6	37.0	35.7
BlockC	57.5	56.9	54.7	49.2
BlockD	51.2	49.3	46.9	50.9
BlockE	36.9	34.6	37.2	33.2