the management for a large grocery store chain would like to determine if a new cash register will enable cashiers to process a larger number of items on average than the cash register which they are currently using. eight cashiers are randomly selected, and the number of grocery items which they can process in three minutes is measured for both the old cash register and the new cash register. without making any assumptions about the distribution, do the data provide conclusive evidence that the new cash register enables cashiers to process a significantly larger number of items than the old cash register? use the wilcoxon signed-rank test to analyze the results. number of grocery items processed in three minutes cashier12345678 old cash register5868706753726139 new cash register6466746258726042 step 1 of 2: find the value of the test statistic to test if the new cash register enables cashiers to process a significantly larger number of items than the old cash register. round your answer to two decimal places, if necessary.