Let 1 = no answer 2 = not at home when contacted 3 = ...

[captainjonesify]

Let 1 = no answer
  2 = not at home when contacted
  3 = disconnected
  4 = refused to participate in the study
 
  Which of them contribute to the nonresponse bias in a telephone survey?
 a. 1, 2
  b. 1, 2, 3
  c. 3, 4
  d. 2, 4
  e. 1, 2, 3, 4

Question 2

A random sample of 5,000 households are selected for interviews with the following results
  1,010 completed interviews
  864 refusals by the respondent
  3,126 no answer/not at home
 
  The response rate is
 a. 19.
  b. 20.
  c. 36.
  d. 38.
  e. 51.

[fraziera112]

Answer to Question 1

E

Answer to Question 2

b

[captainjonesify]

Excellent

[amandalm]

Gracias!