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
E)5.85, 0.43

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 
E)5.85, 0.43

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 
E)5.85, 0.43

A Pizza Delivery Service Wants to Track Their Delivery Times