Sampling error occurs when: A) a nonstatistical sample is ...

[jace]

Sampling error occurs when:
 
  A) a nonstatistical sample is used.
  B) the statistic computed from the sample is not equal to the parameter for the population.
  C) a random sample is used rather than a convenience sample.
  D) a confidence interval is used to estimate a population value rather than a point estimate.

Question 2

Suppose that a group of 10 people join a weight loss program for 3 months. Each person's weight is recorded at the beginning and at the end of the 3-month program. To test whether the weight loss program is effective, the data should be treated as:
 
  A) independent samples using the normal distribution.
  B) paired samples using the t-distribution.
  C) independent samples using the t-distribution.
  D) independent proportions.

[jessicaduplan]

Answer to Question 1

B

Answer to Question 2

B