Question

Historically, the average time to service a customer complaint has been 3 days and the standard deviation has been 0.50 day. Management would like to specify the control limits for an chart with a sample size of 10- and 3- sigma limits. The LCL for the chart would be:A) less than 2.40.B) greater than 2.40 but less than or equal to 2.45.C) greater than 2.45 but less than or equal to 2.50.D) greater than 2.50.

Answer 1

Oof I didn’t learn about this you can ask a class and go over it