Indian Spleen Length. Bhavan Dhingra et al. researchers in India, were interested in ultra-sonographic measurement of liver and spleen size in healthy Indian children. They published their findings in the article ”Normal values of liver and spleen size by Ultrasonography in Indian children” (Indian Pediatrics, Vol. 47, pp. 487–492). The researchers randomly sampled 347 male and 250 female healthy children in India. The mean and standard deviation of the spleen lengths for the male children were 7.9 cm and 0.94 cm, respectively, and those for the female children were 7.6 cm and 0.99 cm, respectively. At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean spleen lengths of male and female Indian children?