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?
A) 24.9, 20.3
B) 7.2, 0.0
C) 3.1, 0.0
D) 22.6, 0.0

Question

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? 
A) 24.9, 20.3 
B) 7.2, 0.0 
C) 3.1, 0.0 
D) 22.6, 0.0

Quizplus · Accepted Answer

The Answer of 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? 
A) 24.9, 20.3 
B) 7.2, 0.0 
C) 3.1, 0.0 
D) 22.6, 0.0

A Pizza Delivery Service Wants to Track Their Delivery Times