Sir,
Please help in the following question.Kindly lay emphasis on the reasoning behind selecting any particular test to solve it.
Ques--On an average Sean calls 3 people in an hour. A random sample of 300 hours is collected and following are the result:


At 10 percent significance level does the data follows a Poisson distribution? If yes then what is the probability of Sean calling more than 7 people in an hour?

Number of calls per hour

0
1
2
3
4
5 or more
Number of hours
10
51
70
70
53
46