PSY 230: Psychological Measurements and Statistics Study Guide 2020/2021

Chapter 1 Homework 1.1 5. Determine whether the data set is a population or a sample. Explain your reasoning. The salary of each baseball player in a league. ● Population, because it is a collection of salaries for all baseball players in the league. 6. Determine whether the data set is a population or a sample. Explain your reasoning. The number of children in four houses on a street of 15 ● Sample, because the collection of the number of children for four houses is a subset of all the house on the street. 7. Determine whether the data set is a population or a sample. Explain your reasoning. The number of floors in each building in a city.The number of floors in each building in a city. ● Population, because it is a collection of the number of floors for all buildings in the city. 8. Use the Venn diagram to identify the population and the sample. Choose the correct description of the population. ● The party of registered voters in the country Choose the correct description of the sample. ● The party of registered voters in the country who voted in the last election 9. Use the Venn diagram to identify the population and the sample. Choose the correct description of the population. ● The income of homeowners in the country