In question 2a, the option is ''no relationship between phone use and accidents'' and ''there is a relationship between phone use and accidents''

1. For a x2 hypothesis testing, if the size of the given contingency table is.. 1. For a x2 hypothesis testing, if the size of the given contingency table is 3 by 4, there is a 10% chance that x2 is larger than what value? (3.d.p.) 10.645 2. The use of cellular phones in automobiles has increased dramatically in the last ten 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 a 0.05 significance level. In the following 2x2 table, JAA|BBB U|25 300 W|50|400 where: AA: Accident in last year, BBB: No accident in last year, U: Using Cellular Phone, W: Not using Cellular Phone (a) State the null hypothesis and alternative hypothesis. (b) State the decision rule and condition. O"Reject Ho if x2 1.96" O"Reject Ho if x2 3.841" with Eij 2 5. (c) Determine the value of test statistics (3 d.p.). (d) What is the decision regarding the null hypothesis. O"Do not reject Ho" O"Accept H1" O"Reject Ho" O"Reject H1&quot