response is only used once. Testing whether IQ scores are different for a A related samplelet-test sample of students who attended a special "creativity" workshop. Recall that IQ scores [ Choose ] have a u of 100, and a o of 15. An independent samples t-test A single sample t-test A Z-test Testing the hypothesis that the weights of An r-test packages on an assembly line deviate from a A related samples t-test target population mean (the o for the weights is not known). Testing the hypothesis that agreement An r-test ratings are affected by a lecturer's gender. One group of participants view a lecture presented by a female lecturer, and another view the same lecture with a male lecturer. Testing the hypothesis that a patient's anxiety will increase after a fire drill. Each A single sample t-test patient's anxiety is measured before a fire drill, and again after a fire drill, and the difference between these scores is compared. Testing the hypothesis that students' A Z-test midterm and final exam scores are related to each other. O DELL