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 Frequency0 31 102 153 234 305 246 207 138 89 or more 4150At the .05 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.