SP 4-1 a. Prepare a table of entities and activities for the Webster, Inc. process described below. Webster, Inc. sells plumbing supplies to contractors in the southern region of the United States. Each month, the IT division at Webster prints monthly statements and sends them to the accounts receivable (AR)department, where a clerk mails them to the customers. Webster’s customers mail their payments back to Webster, where a clerk in AR batches the checks and sends them to the cashier. The AR clerk then uses the payment stub to enter the payments into the computer, where the AR master data is updated to record the payment. b. Construct a context diagram based on the table you prepared in part a. SP 4-2 Prepare a physical DFD based on the output from Short Problem 4-1. SP 4-3 a. Prepare an annotated table of entities and activities based on the output from Short Problems 4-1 and 4-2. Indicate on this table the groupings, bubble numbers, and bubble titles to be used in preparing a level 0 logical DFD. b. Prepare a logical DFD (level 0 only) based on the table you prepared in part (a). SP 4-4 Construct a systems flowchart based on the narrative and the output from Short Problems 4-1 through 4-3.