Answer Happy

A state's park system statistical report for the 2014/2015 fiscal year gave the accompanying data on x amount of money collected in user fees (in thousands of dollars) and y operating cost (in thousands of dollars) for nine state parks in a certain district. User Fees (thousands of dollars) Operating Costs (thousands of dollars) 17 99 74 355 811 3,582 380 1,391 33 239 427 752 500 1,044 734 2,227 760 1,620 (a) Construct a scatterplot of the data. y 4000 3000 2000 1000 0 400 4000 200 600 800 X 4000 3000 2000 1000 00 4000 annal 200 400 600 800
760 (a) Construct a scatterplot of the data. 4000 3000 2000 3000 400 600 400 600 800 4000 3000 2000 1000 S. B 0 200 400 600 800 0 200 SO 400 000 800 K Describe the scatterplot. There is a poetive Enear relationship between user fees collected and operating costs. (b) Find the equation of the least squares regression line (the equation of the best nt line). Hint: use Excel to perform calculations with larger datasets. (Round your answers to three decimal places.) 9--22.0 X+ (e) is the slope of the least squares regression line positive or negative? Is this consistent with your description in part (a)? The slope is positive, which is not consistent with the description in part (a). The slope is positive, which is consistent with the description in part (a). The slope is negative, which is consistent with the description in part (a). 10 200 1,620 800 4000 3000 2000 1000 08 0 @O 4000 3000 2000 1000 0 200 O
3000 2000 1000 0 3000 2000 1000 O 0 200 400 600 800 0 200 400 600 800 20 G Describe the scatterplot. There is a positive ✔linear relationship between user fees collected and operating costs. (b) Find the equation of the least squares regression line (the equation of the best fit line). Hint: use Excel to perform calculations with larger datasets. (Round your and decimal places.) 9--22.68 X ])x (c) is the slope of the least squares regression line positive or negative? Is this consistent with your description in part (a)? The slope is positive, which is not consistent with the description in part (a). The slope is positive, which is consistent with the descripton in part (a). The slope is negative, which is consistent with the description in part (a). The slope is negative, which is not consistent with the description in part (a). (e) Based on the scatterplot, do you think that the correlation coefficient for this data set would be less than 0.5 or greater than 0.57 Explain. The correlation coefficient would be less than 0.5, because the relationship appears weak. The correlation coefficient would be less than 0.5, because the relationship appears moderate or strong. The correlation coefficient would be less than 0.5, because the values are not all colinear The correlation coefficient would be greater than 0.5, because the relationship appean moderate or strong. The correlation coefficient would be greater than 0.5, because the relationship appears weak. 12.