It is believed that the number of drivers who are ticketed for speeding on a particular stretch of highway is a Poisson distribution with a mean of 3.5 per hour.A random sample of 100 hours is selected with the following results: 
Given this information,and without regard to whether there is a need to combine cells due to expected cell frequencies,the critical value for testing whether the distribution is Poisson with a mean of 3.5 per hour at an alpha level of .05 is 
= 15.5073.
Definitions:
Utility
In economics, the satisfaction or benefit derived from the consumption of goods or services.
Ultimate Consumer
The final purchaser and user of a product or service, as opposed to an intermediary or a business buyer.
Newspaper Reporter
A professional tasked with investigating, writing, and reporting news stories for newspapers or news websites.
Plane Ticket
A document issued by an airline or a travel agency to confirm an individual's reservation for a specific flight.
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