It is believed that the daily number of electrical power
Chapter , Problem 4(choose chapter or problem)
It is believed that the daily number of electrical power failures in a certain Midwestern city is a Poisson random variable with mean 4.2. Test this hypothesis if over 150 days the number of days having i power failures is as follows: Failures Number of Days 0 0 1 5 2 22 3 23 4 32 5 22 6 19 7 13 8 6 9 4 10 4 11 0
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