The use of cellular phones in automobiles has increased dramatically

  

The use of cellular phones in automobiles has increased dramatically in the last few years. Of concern to traffic experts, as well as manufacturers of cellular phones, is the effect on accident rates. Is someone who is using a cellular phone more likely to be involved in a traffic accident? What is your conclusion from the following sample information? Use the .05 significance level. Had an accident No Accident Uses cell phone 25 300 No cell usage 50 400 answer the following: Ho: H1: Reject Ho if c2 > χ2 = Ho is Conclusion:

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