arse Hero Dashboard M (no subject) - m.a D Question 2 2 pts A researcher uses an anonymous survey to investigate the study habits of American college students. Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class. For this study, the set of 56 students who returned surveys is an example of a _ and the average time spent (i.e., 4.1 hours per week) is an example of a parameter, statistic statistic, sample population, parameter sample, statistic D Question 3 2 pts A recent study reports that elementary school students who were given a nutritious breakfast each morning had higher test scores than students who did not receive the breakfast. For this study, what is the independent variable?Quiz: Final Exam Course Hero Dashboard M (no subject) - A recent study reports that elementary school students who were given a nutritious breakfast each morning had higher test scores than students who did not receive the breakfast. For this study, what is the independent variable? 2 the students who were given the nutritious breakfast the students who were not given the nutritious breakfast whether or not breakfast was given to the students the test scores for the students D Question 4 2 pts Using letter grades (A, B, C, D, and E) to classify student performance on an exam is an example of measurement on a(n) scale of measurement. nominal ordinal interval ratioQuiz: Final Exam *Course Hero Dashboard M (no subject) - Question 5 2 pts What additional information is obtained by measuring on an interval scale compared to an ordinal scale? whether the measurement are the same or different the direction of the differences the size of the differences none of the above D Question 6 2 pts When the distribution is symmetric and unimodal, which of the following are always equal? Mean and mode Median and mode Mean and median Mean, median, and mode D Question 7 2 ptsHelp A G canvas.unm.edu C Quiz: Final Exam Course Hero Dashboard M (no subject) - m.a Question 7 2 pts People in the stock market refer to a measure called the "standard deviation," although it is calculated somewhat differently from the one discussed in this class. It is a good guess that this measure refers to The riskiness of the stock The value of the stock How much the stock price is likely to fluctuate How much money you are likely to earn from buying that stock D Question 8 2 pts If a set of raw scores is positively skewed then the distribution of the set of z-scores derived from them will be Normally distributed Positively skewed Negatively skewed Symmetrically distributedA basket contains 50 cubes: 20 purple, 15 pink, 10 white, and 5 yellow. The probability that a cube selected at random is yellow is equal to which one of the following? 5/50 10/50 15/50 20/50 Cannot be determined D Question 10 2 pts A sample of n = 25 scores is selected from a population with u = 100 and o = 20. On average, how much error would be expected between the sample mean and the population mean? 25 points 20 points 4 points 2 points A