Question

Passing the ball between two players during a soccer game is a critical skill for the success of a team. A random sample of passes made by two teams in the 2010 World Cup was​ drawn, and the number of successful passes in each sample was counted. Construct a

9999​%

confidence interval to estimate the difference in accuracy between the two​ countries' passes. What conclusions can be​ made?
Passing the ball between two players during a soccer game is a critical skill for the success of a team. A random sample of passes made by two teams in the 2010 World Cup was drawn, and the number of successful passes in each sample was counted. Construct a 99% confidence interval to estimate the difference in accuracy between the two countries' passes. What conclusions can be made? Click the icon to view the pass data. The 99% confidence interval is ( N D . (Round to three decimal places as needed.) What conclusions can be made? O A. Because this confidence interval does not include zero, there is evidence that the successful pass rates are different between these two countries. O B. Because this confidence interval does not include zero, there is no evidence that the successful pass rates are different between these two countries. O C. Because this confidence interval does include zero, there is evidence that the successful pass rates are different between these two countries. OD. Because this confidence interval does include zero, there is no evidence that the successful pass rates are different between these two countries.

Answer 1

criven, n=67 ny = 74 ni = 74 n2 = 88. - - * = 0.905 Part = 0.641 Po= mit me 57+ 14 = 0.87 Olt too 0 . 8 ntna 74+88 %= l-Po = -0,87 = 0.13 siven, an 1-x= 99% = 0.99. then, x= 0.01 , then, Zx = 2. 575 i confidence interval for Pi-Pe is P-P + 32oz .). S 0.905 -0.841 t 2.575 0.87x01 13 0.064 +2.575 0.003

- 0.064 + 0.141 > C -0.077 0.205). what conclusion can be made D Because this confidence interval does not include zero, there is no evidence that the successful pass rates are different between these toro countries.