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Business, 27.11.2019 21:31 860jay

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: umber of cars arriving in a 10-minute interval
col1 number of cars arriving in a 10-minute interval 1 2 3 4 5 6 7 8 9 or more
col2 frequency 3 10 23 30 24 20 13 8 14 150
at the 0.5 level of significance, the conclusion of the test is that the
a. null hypothesis cannot be rejected.
b. arrival of cars does not follow a poisson distribution.
c. 10-minute intervals follow a poisson distribution.
d. arrival of cars has no distribution

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