Question

1. What is the relationship between Average Run Length (ARL) and Type I (a – alpha) and Type II (b– Beta) errors relative to the control chart. What practical implication in terms of process operation do these two types of errors have? on excel
2. The length in minutes of calls made to a call center is measured. A normal distribution with a mean value of 46.8 minutes and a standard deviation of 1.75 minutes is postulated. Consider randomly selecting a single call. (10 points each)What is the probability that maximum length is at most 50 km/h? What is the probability that maximum length is at least 48 km/h? in excel

Answer 1

Ju 부'