Do the needs of patients in the emergency room differ for those who come by car vs. those by ambulance? Of the randomly selected emergency room patients who came by car 54 had an injury, 53 were sick, 37 had heart problems and 67 had other needs. Of the randomly selected emergency room patients who came by ambulance 45 had an injury, 22 were sick, 43 had heart problems and 30 had other needs. Conduct the appropriate hypothesis test using an a = 0.01 level of significance. a. What is the correct statistical test to use? O Homogeneity Goodness-of-Fit O Independence Paired t-test b. What are the null and alternative hypotheses? Ho: O Means of transportation to the emergency room and emergency room needs are independent. O The distribution of emergency room needs for patients who come by car is the same as it is for patients who come by ambulance. O The distribution of emergency room needs for patients who come by car is not the same as it is for patients who come by ambulance. O Means of transportation to the emergency room and emergency room needs are dependent.