John is self employed and his monthly income varies. His monthly ...

[aabwk4]

John is self employed and his monthly income varies. His monthly income is normally distributed with a mean of 3900 and a standard deviation of 320.
 
  He is trying to determine the amount B that he can budget for his total monthly expenses. He needs to be pretty certain that his mean monthly income will be greater than B. What amount should he budget if he wants only a 0.05 chance that his mean monthly income for the next year is less than B?
  A) 3582 B) 3748 C) 4052 D) 3719

Question 2

A university obtains the student ID numbers of all 23,456 students, the interview subjects were selected by using a computer to randomly generate student ID numbers and contacting those chosen.
 
  A) No B) Yes

[sierramartinez]

Answer to Question 1

B

Answer to Question 2

B

[aabwk4]

Thank you!

[sierramartinez]

Always glad to help...