Suppose a magazine would like to investigate the relationship between the battery life, in hours, and the screen size, in diagonal inches, of a laptop computer. The accompanying table shows a random sample of eight laptops and the battery lite and corresponding screen 5 each. Use this information to complete parts a through e below. E Click the icon to view the table showing battery life and screen size for B laptops. 5:) Construct a scatter plot tor these data. Choose the correct graph below. O A. O B. O c. O D. A A A A 5 a Q 20 0' 5 . Q 20 Q 3 a a 24' 3 "all: a Q a Q 3 wane Q :7: Q E D a 3 5 o o S n E r; .5: ' :4 3 :4 5? Q\" r; , , , o , 2 > 10 . > 2 > 10 > 10 20 2 5 10 20 2 5 Screen Sile Battery Lite Screen Size Battery Lire b) Calculate the slope and y-intercept for the regression equation. X The slope is b= . (Round to tour decimal places as needed.) Table Of Battery Llfe and screen SIZe The yintercept is a = . (Round to four decimal places as needed.) c) Provide an interpretation for the value of the Slope. Battery Life Screen Size Q 3.4 1 61 Because the slope is . it can be concluded that a one E increase in '7' the 7 by an average of l 3.9 17.6 (Round to four decimal places as needed.) 33 143 d) Calculate the coetcent of determination. 3-9 11-9 3.2 14.2 R2 = (Round to three decimal places as needed.) 4_1 133 4.7 1 1.3 e) Interpret the value of R-squared. 3 9 12 6 About % (Enter an integer with 0 decimal places) of the ' ' e) Interpret the value of R-squared. About I: % (Enter an integer with 0 decimal places) of the O B. variance 0 C. variation 0 D. inches 0 E. hours 0 A. screen size 0 B. battery life is explained by the relationship with O A. battery life 0 B. screen size that is modelled by the regression equation