Problem 5-15 Rapidtest Instrument Labs A purchasing agent for Rapidtest Instrument Labs is trying to determine the best delivery provider to use for delivering instruments to customers after they have been repaired or recalibrated. She has developed an index, on a scale of 1 to 5 (5 is outstanding) that weights the key quality factors of time, service and cost. Three delivery services, A, B, and C, are candidates for a long term blanket contract with Rapidtest. The data shown below were gathered in test deliveries to 10 customers. What recommendation would you make, based on these data? Delivery Comparison st Delivery Test No. Supplier A Supplier B Supplier C 1 4 5 3 2 5 2 4 3 4 3 1 3 3 3 5 5 2 2 6 3 3 4 7 4 4 8 5 1 9 2 4 10 3 2 NWN ANW