Required Information An article presents measurements of total solids, In g/L. for seven sludge specimens. The results are 19. 6. 26, 43. 25. 20 and 32. Assume the distribution of total solids is approximately symmetric. Can you conclude that the mean concentration of total solids is less than 30 g/L? Compute the appropriate test statistic and find the P. value The appropriate test statistic Is and P > 0.1094 We cannot conclude that the mean concentration of total solids is less than 30 g/L