Given a normal random variable x with mean of 82 and standard ...

[dejastew]

Given a normal random variable x with mean of 82 and standard deviation of 12, the value of the standard normal random variable z associated with x = 70 is smaller than zero.
  Indicate whether the statement is true or false

Question 2

If you wish to construct 85 upper confidence bound (UCB) for the population proportion p, then the z-value you should use is approximately:
 a. 2.58
  b. 2.33
  c. 1.96
  d. 1.65
  e. 1.04

[Cnarkel]

Answer to Question 1

T

Answer to Question 2

E

[dejastew]

Excellent

[sultansheikh]

Thanks for the timely response, appreciate it