The number of Unitrans buses passing through the bus station was recorded for 100 three-minute time periods:
|Number of Buses||Count|
(a) Use a goodness of ﬁt test with α = 0.05 to assess whether a Poisson distribution is a good ﬁt for the data.
(b) Suppose that we expect the ratios of the above cells to be 1:2:2:1, respectively. Use a goodness of ﬁt test with α = 0.05 to assess whether these expected ratios are consistent with the data.
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