When 338 college students are randomly selected and surveyed, it ...

[CQXA]

When 338 college students are randomly selected and surveyed, it is found that 112 own a car. Find a 99 confidence interval for the true proportion of all college students who own a car.
 
  A) 0.272 < p < 0.391 B) 0.281 < p < 0.382 C) 0.289 < p < 0.373 D) 0.265 < p < 0.397

Question 2

n = 147, x = 59; 90 percent
 
  A) 0.335 < p < 0.467 B) 0.337 < p < 0.465 C) 0.333 < p < 0.469 D) 0.338 < p < 0.464

Question 3

n = 186, x = 140; 95 percent
 
  A) 0.703 < p < 0.803 B) 0.691 < p < 0.815 C) 0.690 < p < 0.816 D) 0.704 < p < 0.802

[kkenney]

Answer to Question 1

D

Answer to Question 2

OMG..This is soo helpful. Thank you.

Answer to Question 3

B

[CQXA]

Thank you!

[kkenney]

Always glad to help...