Question 3.96

3.96 What’s wrong?

Explain what is wrong in each of the following statements. Give reasons for your answers.

  1. A simple random sample was used to assign a group of 30 subjects to three treatments.
  2. It is better to use a table of random numbers to select a simple sample than it is to use a computer.
  3. Matched pairs designs and block designs are complicated and should be avoided if possible.