a. It is known that 86% of persons with insomnia also have reported a problem with fatigue. Dr. Delgado's patient Bob reports no problem with fatigue. Based on this information, should Dr. Delgado decide that Bob has insomnia? Explain your answer (4 points). b. What is the advantage of one-tailed tests over two-tailed tests? (2 points). c. What is the disadvantage of one-tailed tests over two-tailed tests? (2 points). d. Why is it important to avoid Type I errors? (2 points)