Number of Vehicles Involved Did alcohol play a role? Yes 50 100 20 No 25 175 30 1. A group against d

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Number of Vehicles Involved Did alcohol play a role? Yes 50 100 20 No 25 175 30 1. A group against drunk driving did a recent study and found the above information regarding 400 accidents that occurred on a Saturday night in NY. What is the probability of accidents involving a single vehicle, given that alcohol was involved? 50/75 a. Б. 50/170 120/170 120/400 d. PROBLEM A To conduct a research project on college student income, the number of students to sample needs to be calculated. To estimate the mean population income, we decide to use a 10% level of significance. The desired E- $200. The standard deviation from other studies of student income is S1500. 2. Referring to Problem A, using a 10% level of significance, the critical value is 1.96 a. 1.64 0.005 1.00 b. C. “P. 3. Referring to Problem A, what sample size is required? 20 b. c. a, 217 152 “P PROBLEMB At the airport entry sites, a computer is used to randomly decide whether a traveler's baggage should be opened for inspection. Referring to Problem B, if the chance of being selected is 129%, can you model your chance of having your baggage opened with a Bermoulli model? Yes b. 4. a. No Referring to Problem B, how many outcomes on each trial are possible? 5. 12% a. b. Two Only one d. Too many to count C. Tory

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