Wilcoxon ranked test

Body height and arm span are related quantities; taller people generally have longer arms. One rule of thumb says that adult height is nearly equal to adult span. The arm spans of 10 adults were measured in centimeters. Height 171 175 177 178 180 182 190 192 195 202 Span 173 178 182 182 188 185 186 198 193- At 0: =0.05, does the data indicate that the heights and arm spans are equal? A. Determine the critical value. B. Determine the test statistic