• Home
  • Swinburne University of Technology
  • Foundations of statistics
  • Understanding Populations and Samples in Statistics

Understanding Populations and Samples in Statistics

STA10003 FOUNDATIONS OF STATISTICS Assignment 1: Topic test 1 Topic test 1 Question 1 0.1 / 0.1 pts A researcher uses an anonymous survey to investigate the study habits of American college students. The entire group of American college students is an example of a . parameter population statistic sample Question 2 0.1 / 0.1 pts A researcher is interested in the eating behaviour of rats and selects a group of 25 rats to be tested in a research study. The group of 25 rats is an example of a . parameter population statistic sample Question 3 0.1 / 0.1 pts Although a research study is typically conducted with a relatively small group of participants known as a most researchers hope to generalise their results to a much larger group known as a . parameter; population population; sample statistic; sample sample; population STA10003 FOUNDATIONS OF STATISTICS Assignment 1: Topic test 1 Question 4 0.1 / 0.1 pts A researcher is curious about the average monthly cell phone bill for high school students in the state of Florida. If this average could be obtained, it would be an example of a . parameter population statistic sample Question 5 0.1 / 0.1 pts A characteristic that describes a sample, usually a numeric value, is called a . constant variable statistic parameter Question 6 0.1 / 0.1 pts A researcher conducts an experiment to determine whether moderate doses of St. Johns wort have any effect of memory for college students. For this study, what is the independent variable? Whether or not they are full-time students. The group of college students. The memory score for each participant. The amount of St. Johns wort given to each participant. STA10003 FOUNDATIONS OF STATISTICS Assignment 1: Topic test 1 Question 7 0.1 / 0.1 pts In a correlational study, . two variables are measured and there is only one group of participants one variable is measured and there is only one group of participants two variables are measured and two groups are compared one variable is measured and two groups are compared Question 8 0.1 / 0.1 pts In the simplest experimental study, . two variables are measured and there is only one group of participants one variable is measured and there is only one group of participants two variables are measured and two groups are compared one variable is measured and two groups are compared Question 9 0.1 / 0.1 pts If a variable can be divided into an infinite number of fractional parts, then it is a(n) variable. dependent discrete continuous independent