A sample of 300 cars having cellular phones and one of 400
Chapter , Problem 21(choose chapter or problem)
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 No Accident 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.
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