Criminal Justice Data Analysis CRJU 3401 Quiz 3 || With Complete Questions & Answers (Graded A+)

Criminal Justice Data Analysis CRJU 3401 Quiz 3 || With Complete Questions & Answers (Graded A+) Criminal Justice Data Analysis CRJU 3401 Quiz 3 || With Complete Questions & Answers (Graded A+) If the correlation between two variables is .496, what is the coefficient of determination? If a simple Pearson correlation value = .512, what percentage of variance is accounted for? You would like to examine the association between temperature and frozen yogurt sales. You hypothesize that higher temperatures will be associated with increased frozen yogurt sales. You have a ______ hypothesis. Which of the following Greek symbols is used to represent the population estimate for a correlation coefficient? A professor hypothesizes that there will be a relationship between couples' listening skills and length of marriage. She has a ______ hypothesis. Which of the following is an example of a null hypothesis for testing a correlation coefficient? If a simple Pearson correlation value = .362, what percentage of variance is unaccounted for? If you posit that a relationship between two variables will be either positive or negative, what type of test should you use? Which of the following nonparametric tests is used to compare two independent samples? Which of the following is used to compare the medians from two samples? If there are three categories for which you are calculating a one-sample chi-square, what are the degrees of freedom? If you have 100 respondents identifying their political affiliation (i.e., Democrat, Republican, or Independent), what would the expected frequency be for each category? Which of the following is the Greek symbol chi? Which of the following nonparametric tests is used to determine whether the number of occurrences across categories is random? In the result , what is ? Which of the following nonparametric tests is used to compare the magnitude and direction of differences between two groups? Which of the following determines the direction of the regression line? When setting up the regression line in the Excel dialog box, you should define the ______ of the data you want Excel to use. The general formula for a regression line is ______. Using the regression formula with a slope = .704 and an intercept = .719, what would the predicted college GPA be for a student whose current high school GPA = 3.2? Which of the following is the point at which the regression line crosses the y-axis? Which Excel output for a completed regression measures how significant the contribution of any one independent variable is to understand the outcome? How is the symbol interpreted? A regression equation can be visually represented on a(n) ______. In multiple regression, added variables must be related to the outcome variable but ______each other.