An operations analyst counted the number of arrivals per minute at a bank ATM in each of 30 randomly chosen minutes. The results were: 0, 3, 3, 2, 1, 0, 1, 0, 0, 1, 1, 1, 2, 1, 0, 1, 0, 1, 2, 1, 1, 2, 1, 0, 1, 2, 0, 1, 0, 1. Which goodness-of-fit test would you recommend?
A)Uniform
B)Poisson
C)Normal
D)Binomial

Question

Quizplus · Accepted Answer

The Poisson distribution is best suited for analyzing arrival times or counting occurrences of rare events in a fixed interval. In this case, we are counting the number of ATM arrivals per minute, making it a Poisson distribution.

An Operations Analyst Counted the Number of Arrivals Per Minute