A power analysis is often used to determine sample size. The use of too many animals (or other experimental units) wastes animals, money, time and effort, and it is unethical. But if too few animals are used the experiment may lack power and miss a scientifically important response to the treatment.
Connecticut â if shift is 7.5 hours, 1/2 hour lunch after first 2 hours but before last 2 hours. Delaware â if shift is 7.5 hours, 1/2 hour lunch after first 2 hours but before last 2 hours. Illinois â required for hotel room attendants only. Kentucky â reasonable meal period between 3rd and 5th hour of shift.
In the United States, most states require a minimum 30 minute lunch break if you work at least 5 or 6 consecutive hours. Federal law requires you to receive one paid 15 minute break every 4 hours you work (so if you work a normal 8 hour day, you will get two 15 minute breaks).