A national food company wants to see whether a coupon will affect sales for macaroni and cheese. The company picks a single grocery store in a certain city in which to test two coupon types: "buy one, get one (BOGO) free" and "$.50 off." They also want to test whether it matters on which day of the week the coupon gets delivered: Wednesday or Thursday. They randomly assigned customers to one of the four conditions. They measure success by total sales of their macaroni and cheese at the store. The analyst computes the means for each cell, which appear in the accompanying table. Complete parts a through d below. ck here to view the data table with means for each cell. c) Does this experiment satisfy the necessary conditions for a properly designed experiment? The principle of control The principle of randomization The principle of replication The principle of blocking - X Data table with means Coupon Type Buy-One-Get-One $.50 off Mean Wednesday 625 525 575 Day of Week Thursday 425 725 575 Mean 525 625 Print Done