"A m119_ch12 hw - Math119-FALL x Course Hero X + Low Battery Your Mac will sleep soon unless plugged C A webassign.net/web/Student/Assignment-Responses/submit?dep=29896586&tags=autosave#Q10 into a power outlet. 10. [5/13 Points] DETAILS PREVIOUS ANSWERS ILLOWSKYINTROSTAT1 12.6.075.HW. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Ornithologists, scientists who study birds, tag sparrow hawks in 13 different colonies to study their population. They gather data for the percent of new sparrow hawks in each colony and the percent of those that have returned from migration. Percent return: 74; 66; 81; 52; 73; 62; 52; 45; 62; 46; 60; 46; 38 Percent new: 6; 5; 8; 10; 11; 15; 15; 17; 19; 17; 19; 19; 21 Let Percent Return be the independent variable and Percent New be the dependent variable. + Part (a) +) Part (b) E Part (c) Explain in words what the slope and y-intercept of the regression line tell us. (Round your answers to two decimal places.) The y-intercept indicates that when there are no returning hawks, there will be| % new hawks. The slope indicates that for each percentage increase in returning hawks, the percentage of new hawks decreases by % . Part (d) FreeFile Converts How well does the regression line fit the data? Explain your response. (Round your answer to two decimal places.) The correlation coefficient is r= . which indicates a |somewhat strong v correlation between returning and new percentages. Part (e) Which point from the data has the largest residual? (x, y) = ( Explain what the residual means in context. Is this point an outlier? An influential point? Explain. (Round your answers to the nearest whole number.) The residual means that when the observed return percentage is , the observed new percentage will be |% less than the predicted new percentage. Removing this data point ---Select--- v have a large effect on the regression line, so it | is not van outlier, and it is not an influential point. Part (f) An ecologist wants to predict how many birds will join another colony of sparrow hawks to which 70% of the adults from the previous year have returned. What is the prediction? (Round your answer to two decimal places.)