Test the hypothesis that having a cellular phone

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A sample of 300 cars having cellular phones and one of 400 cars without phones were tracked for 1 year. The following table gives the number of these cars involved in accidents over that year.

 

 

Accident

NoAccident

Cellular phone

22

278

No phone

26

374

Use the above to test the hypothesis that having a cellular phone in your car and being involved in an accident are independent. Use the 5 percent level of significance.

Reference no: EM13901889

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