Part I: Nonparametric Methods
A sign test is a nonparametric method used in statistics for comparison of a single sample with a hypothesized value. The test is commonly used in situations where a paired t-test is traditionally applied. In the study, a sample of n patients is used in determining the preference for central nervous system saturation. The main objective of conducting the test was to determine whether a difference in preferences between the central nervous system saturation and the time of oxygen admission existed. Sign test was explored in paired data whereby central nervous system saturation data from ten patients was collected on admission and 6 hours after ...
