A Random Sample of 11 Third Year Medical School Students

Multiple Choice

A random sample of 11 third year medical school students took a comprehensive written exam as well as a comprehensive oral exam.The scores on both exams are given below.It is established that both test scores have highly non-normal distributions. The medical examination board wants to know if the oral exam scores are higher than the written exam scores.State the appropriate null hypothesis for this problem.

A) H₀: The probability distribution of written exam scores is identical to the probability distribution of oral exam scores.
B) H₀:The probability distribution of written exam scores has shifted to the left of the probability distribution of oral exam scores.
C) H₀:The probability distribution of written exam scores has shifted to the right of the probability distribution of oral exam scores.
D) H₀:The probability distribution of written exam scores has shifted to the left or right of the probability distribution of oral exam scores.