Question: Researchers in an education department at a large state university
Researchers in an education department at a large state university have designed a study to compare the math abilities of students in junior high. They will also examine the impact of three types of schools—public, private nonparochial, and parochial—on the scores the students receive in a standardized math test. Two large cities in each of four geographical regions of the United States were selected for the study. In each city, one school of each of the three types was randomly selected, and a single eighth-grade class was randomly selected within each school. The scores on the test were recorded for each student in the selected classrooms. The researcher was concerned about differences in socio-economie status among the 8 cities, so she obtained a measure of socioeconomic status for each of the students that participated in the study.
Relevant QuestionsA research specialist for a large seafood company plans to investigate bacterial growth on oysters and mussels subjected to three different storage temperatures. Nine cold-storage units are available. She plans to use three ...The school of nursing at a university is developing a long- term plan to determine the number of faculty members that may be needed in future years. Thus, it needs to determine the future demand for nurses in the areas in ...A transportation researcher is funded to estimate the proportion of automobile tires with an unsafe tread thickness in a small northern state. The researcher randomly selects one month during each of the four seasons for ...Time magazine, in an article in the late 1950s, stated that “the average Yaleman, class of 1924, makes $ 25,111 a year,” which, in today’s dollars, would be over $ 150,000. Time’s estimate was based on replies to a ...A study of the reliability of buses [“Large Sample Simultaneous Confidence Intervals for the Multinominal Probabilities on Transformations of the Cell Frequencies,” Technometrics (1980) 22: 588] examined the reliability ...
Post your question