Which is true about sampling? I. An attempt to take a census ...

[ts19998]

Which is true about sampling?
  I. An attempt to take a census will always result in less bias than sampling.
  II. Sampling error is usually reduced when the sample size is larger.
  III.
 
  Sampling error is the result of random variations and is always present.
  A) II only B) I only C) I, II, and III D) II and III E) III only

Question 2

If the null and alternative hypotheses are
  H0:  = 80
  HA:  > 80
  then the area of rejection for the null hypothesis is
 
  A) to the left.
  B) to the right.
  C) split into two parts in both directions.
  D) cannot be determined from the given information.

[macybarnes]

Answer to Question 1

D

Answer to Question 2

B

[ts19998]

TYSM

[mohan]

Gracias!