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“In the briny sea of ignorance our shipments of knowledge steam forth. There are perils along the way and only the most sea worthy experiments will reach the Shores of Understanding. Designing a worthy experiment is not difficult, but it must not be taken lightly -one missed level of randomization may mean that our knowledge will come up short of our goal. Many man hours are lost every year to poor designs of experiments -don’t let yours be one of them!” (via Statistics Propaganda Poster Poor Design by NausicaaDistribution)
