I have attached the question in the photo below. All 3 parts are important. Thank you.

You want to know whether there is any difference existing in the number of traffic accidents in three cities. The data on the number of traffic accidents in three different cities are shown in the following table. City 1 City 2 City 3 20 18 9 12 14 13 11 16 6 19 O N O K G 10 17 You need to: (1) Explain which statistical procedure you would apply to determine whether there is a difference between these cities with respect to the number of traffic accidents. (2) Construct a null hypothesis and an alternative hypothesis; (3) Test the null hypothesis at the significant level of 0.05 and explain the results