Question

***PLEASE DO ALL THIS IS MY LAST QUESTION OF THE GIVEN AMOUNT OF QUESTIONS :( ***

Which value of r indicates a stronger correlation:r 0.751 orr0.896? Explain your reasoning Choose the correct answer below. A. r=-0.896 represents a stronger correlation because 0.751 >-0.896. B. r=0.751 represents a stronger correlation because l-08961-10.751. C· r--0 896 represents a stronger correlation because 1-0 8961-10751. D. 0.751 represents a stronger correlation because 0.751> -0.896. The budget (in millions of dollars) and worldwide gross (in millions of dollars) for eight movies are shown below. Complete parts (a) through (c) 176 1785 176 411 168 546 Budget, x Gross, y 206 441 205 300 200 705 182 198 (a) Display the data in a scatter plot. Choose the correct graph below A. B. C. 21 1651 165 100 165 215 165 215 100 Match the regression equation y-0.667x+52.6 with the appropriate graph. Choose the correct answer below. Ay 12- 4000 0 8000 0 50 100 C. Ay 0 20 40 0 30 60 Match the regression equation y 0.667x+52.6 with the appropriate graph. Choose the correct answer below. B. 0 20 40 0 50 100 D. Ay 0 30 60 0 4000 8000 Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a signific ant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. (a) x 2 hours (c)x-15 hours Hours spent studying, x0 Test score, y 1 3 446 (b)x-2.5 hours (d)x=1.5 hours 40 43 50 47 64 73 Find the regression equation. Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r0.652 Calculate the coefficient of detemination. (Round to three decimal places as needed.) Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r0.831 Calculate the coefficient of determination. Round to three decimal places as needed.)

Answer 1

1)
stronger correlation
option C) is correct
2)

option C) is correct scatter plot

3)
y^= -0.667 x + 52.6
option D) is correct

4)
this is same as Q3
option C) is correct

5)

Y^= 5.167 x + 37.333

6)
r^2 = 0.425
7)

r^2 = 0.691