During the week of October 2-8, 2011 the lawn area Harris Hall student Commons c
ID: 3172090 • Letter: D
Question
During the week of October 2-8, 2011 the lawn area Harris Hall student Commons contains a display of red flags. The Red Flag Campaign is a public awareness campaign designed to address dating violence and promote the prevention of dating violence on college campuses. The campaign was created using a "bystander intervention" strategy encouraging friends and other campus community members to "say something" when they see warning signs ("red flags") for dating violence in a friend's relationship. The campaign posters reflect racially and ethnically diverse models and illustrate both heterosexual and same-sex relationships. The Campaign is a project of the Virginia Sexual and Domestic Violence Action, Alliance, and was created by college students, college personnel, and community victim advocates. The Campaign is funded by grams from the Verizon Foundation. Verizon Wireless, Macy's Foundation, and the centers for Disease Control and Prevention. For more details you can go to https://www.theredflagscampaign.org/. A simple sample of 46 colleges or universities was selected and of interest is to use the enrollment of the college or university to predict the reported number of dating violence cases. This data is displayed in the scatterplot below. According to the scatterplot and the paragraph above the scatterplot, which of the following is a correct statement? Enrollment is a lurking variable. Enrollment is the dependent variable. Number of dating violence cases is the response variable. Number of dating violence cases is the explanatory variable. Enrollment is the response variable. The regression line that gives the linear relationship between enrollment and reported number of dating violence cases is predicted number of dating violence cases - 6.393822 + 0.001061 (enrollment). Draw this regression line on the scatterplot above equation 1. The largest public institution the United States is Arizona State University, which reported an enrollment of 58, 311 students and had 62 reported dating violence cases. You should be able to identify the point representing Arizona State University on the scatterplot above. Which of the following is Arizona State University an example of Extrapolation Residual Outlier Influential observation Deviator The regression line that gives the linear relationship between enrollment and repeated number of dating violence cases is predicted number of dating violence cases = 6.393822 + 0.001061(enrollment). Which of the following is the correct interpretation of the slope of this regression line? If the enrollment is0 people, the predicted number of dating violence cases is 6.393822 cases. If the number of dating violence cases is 0, the predicted enrollment is 6.393822 people. if the number of dating violence cases increases by 1 case, the predicted enrollment increases by 0.001061 people. If the enrollment increases by 1 person, the predicted number of dating violence cases increases by 0.001061 cases. If the enrollment increases by 1 person, the predicted number of dating violence cases increases by 6.393822 cases.Explanation / Answer
Answer for 1 is C. Number of dating violence cases is the response variable.
2. We need to have the data for x (independent) and y (dependent) variable in excel. Once. we have that, we need to go to insert and then click on scatter (Scatter with only markers) and then right click on data lines and click on add trendline and also check below Display Equation on chart and Display R-squared value on chart.
3. Answer is C- it is an outlier because it is not amongst the majority (chunk) of datapoints.
4. Answer is D.
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