Goodness of fit test for poisson distribution

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Reference no: EM1314418

The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies:

Number of Cars Arriving in a 10-Minute Interval	Frequency
0	3
1	10
2	15
3	23
4	30
5	24
6	20
7	13
8	8
9	4
Total	150

The conclusion of the test is that the

A. arrival of cars follows a Poisson distribution

B. arrival of cars does not follow a Poisson distribution

C. test is inconclusive

D. None of these alternatives is correct.

Reference no: EM1314418

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