Which of the following is generally acknowledged as the most powerful advertising medium and reaches a broad spectrum of consumers at low cost per exposure?

What do the terms producer's risk and consumer's risk mean?

What will be an ideal response?

A pizza delivery service wants to track their delivery times. They take eight samples of four deliveries and record the following data. What are the upper and lower control limits of their R-chart?

Sample # 1 2 3 4 5 6 7 8 Item #1 21.1 20.2 24.1 22.6 21.2 20.9 22.4 20.9 Item #2 21.7 20.6 21.7 21.7 24.1 23.5 24.6 24.7 Item #3 23.0 24.5 23.2 23.0 20.6 22.8 23.4 22.8 Item #4 20.3 23.5 24.4 25.0 20.7 23.2 23.3 24.5 A) 24.9, 20.3 B) 7.2, 0.0 C) 3.1, 0.0 D) 22.6, 0.0