Samples of cream from each of 10 dairies (A to J) are each divided into two portions. One portion from each is sent to Labratory I and the other to Labratory II, for bacterium counts. The counts (thousands bacteria/ml) are Lab I Lab II 15.2 15.5 13.7 14.9 12.6 12.7 13.5 14 15.2 16.3 12 12.5 13.5 14.4 15.9 17.4 14.1 15.1 12.2 13.7 Use the Wilcoxon signed-rank test to assess the evidence for any consistent difference between labratories for subsamples from the same dairy. Calculate differences as Lab II - Lab I. What is the sum of the negative ranks (W)? What is the sum of the positive ranks (W+)? What type of test is this? Select an answer What is the test statistic W? These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=10 Alpha Level 0.001 0.005 0.01 0.025 Critical Value 54 51 49 46 0.05 0.1 0.2 44 40 36 What is the p-value for this test? Select an answer