Civil Engineering: Soil Profiles Sand and clay studies were conducted at the West Side Field Station of the University of California. (Reference: Professor D. R. Nielsen, University of California, Davis.) Twelve consecutive depths, each about 15 cm deep, were studied and the following percentages of sand in the soil were recorded. 19.0 27.0 30.0 24.3 33.2 27.5 24.2 18.0 16.2 8.3 1.0 0.0 (i) Convert this sequence of numbers to a sequence of symbols A and B, where A indicates a value above the median and B a value below the median. (ii) Test the sequence for randomness about the median. Use a 0.05.

Chapter 1 Section 1 Variable-a characteristic/attribute that can assume different values Data- values that the variables can assume Population- all subjects undergoing a study Parameter- measure obtained from the population data Uses Greek Letters to categorize Sample- a group selected from the population, to make the study more concentrated...