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MMLU / An experiment was designed to test the effects of three different types of paint…

Problem

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question

An experiment was designed to test the effects of three different types of paint on the durability of wooden toys. Because boys and girls tend to play differently with toys, a randomly selected group of children was divided into two groups by sex. Which of the following statements about this experiment is true?

choices

  1. There are three types of paint and two sex groups, giving a total of six treatment combinations in this experiment.
  2. Type of paint is a blocking factor.
  3. Sex is a blocking factor.
  4. This is a completely randomized design.

subject

high_school_statistics

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Source and history

Official source

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