The number of incoming phone calls at a company switchboard during 1 minute intervals is believed to have a Poisson distribution Use 10 and the following data to test the assumption that the incoming phone calls follow a Poisson distribution Number of Incoming Phone Calls During a 1 Minute Interval...

x Observed Poisson Probabilities Expected 0 15 1353 1353 1 31 2707 2707 2 20 2707 2707 3 ...

The number of incoming phone calls at a company switchboard during 1-minute intervals is believed to have

Question:

The number of incoming phone calls at a company switchboard during 1-minute intervals is believed to have a Poisson distribution. Use Î± = .10 and the following data to test the assumption that the incoming phone calls follow a Poisson distribution.