Use the given data set to complete parts (a) through (c) below. (Use a = 0.05.) 10 7.47 X y O A. Click here to view a table of critical values for the correlation coefficient. a. Construct a scatterplot. Choose the correct graph below. Aу 16 of II 7, 9 12- 4- THHHHH HIILIH ||||||||" Ble HAS **** 8 6.76 8 12 16 13 12.73 Q OB. Ay 16+ 12- III ||||||| 8- 4- 9 7.11 ****** 0 4 8 12 16 Q Q 11 7.82 CELEB 14 8.84 +4 0 OC. Ay 16 12- Ho 4- 0 ********** 8 6 6.08 12 16 Q 4 5.39 12 8.14 O D. Ay ||||||||ES 16+ 12- & 4 of ||||||||- ******* 8 His B||||$|| 7 6.42 Q Q 5 5.73

9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. с. 150 150 150 100 100 100 50 50 50 0 2 4 6 x 0 2 4 6x 0 2 4 6 x

Bt.20.

OA. Tip Amount ($) Construct a scatterplot. Choose the correct graph below. 25- The table below includes data from taxi rides. The distances are in miles, the times are in minutes, the fares are in dollars, and the tips are in dollars. Is there sufficient evidence to conclude that there is a linear correlation between the time of the ride and the tip amount? Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a 0.01. Does it appear that riders base their tips on the time of the ride? Click here for information on the taxi rides. 0 35 Ride time (minutes) Determine the linear correlation coefficient. The linear correlation coefficient is r= (Round to three decimal places as needed.) Tip Amount ($) B. Q 25- Q 0- 0 35 Ride time (minutes) Tip Amount ($) C. 25- Q 0 35 G Ride time (minutes) O D.…

K Refer to the accompanying scatterplot. The four points in the lower left corner are measurements from women, and the four points in the upper right corner are from men. Complete parts (a) through (e) below. OA. There appears to be a linear correlation because the points form a line. OB. There appears to be a linear correlation because the points form an obvious pattern. OC. There does not appear to be a linear correlation because the points do not form a line. O D. There does not appear to be a linear correlation because the points form an obvious pattern. AY OA. There appears to be a linear correlation because the points form an obvious pattern. OB. There appears to be a linear correlation because the points form a line. OC. There does not appear to be a linear correlation because the points form an obvious pattern. OD. There does not appear to be a linear correlation because the points do not form a line. 12- 9- 0 The correlation coefficient for the points in the lower left corner…

A, B, C, or D?

Match each scatterplot shown below with one of the four specified correlations. O O O O O O O 0 80 8 88 O O 50 O 00 a. -0.34 b. -0.88 c. 0.54 d. 0.67