The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks Troy students are smarter than average, so he randomly samples 10 students and records the following IQ data to test his hypothesis. What is the alternative hypothesis for this problem? IQ: 95 100 105 110 115 100 105 110 105 105 O Troy students have an IQ equal to 100 O Troy students have an IQ less than 100 Troy students have an IQ greater than 100 O Troy students have an IQ that is not 100

Is there a difference in the car brand's countries for Midwesterners and people from the west coast? Of the 173 randomly selected Midwesterners surveyed 65 had an American car, 83 had a car from Asia, and 25 had a cars from another country. Of the 163 randomly selected people from the west coast who were surveyed, 44 had an American car, 79 had a car from Asia, and 40 had a car from outside of the US and Asia. Conduct the appropriate hypothesis test using an αα = 0.10 level of significance. The p-value for this sample =  (Please show your answer to four decimal places.)

What type of evidence is needed for a hypothesis to be supported or not supported? O demonstrative evidence O observational evidence O physical evidence O circumstantial evidence

Is there a difference in the car brand's countries for Midwesterners and people from the west coast? Of the 193 randomly selected Midwesterners surveyed 60 had an American car, 110 had a car from Asia, and 23 had a cars from another country. Of the 151 randomly selected people from the west coast who were surveyed, 45 had an American car, 74 had a car from Asia, and 32 had a car from outside of the US and Asia. Conduct the appropriate hypothesis test using an a = 0.10 level of significance. a. What is the correct statistical test to use? O Homogeneity O Independence O Goodness-of-Fit O Paired t-test b. What are the null and alternative hypotheses? Ho: O The distribution of car brand's countries is not the same for Midwesterners and people from the west coast. Address and car brand's countries are independent. O The distribution of car brand's countries is the same for Midwesterners and people from the west coast. O Address and car brand's countries are dependent. H1: O Address and car…