Marcie conducted a study of the cost of breakfast cereal. She recorded the costs of several boxes of cereal. However, she neglected to take into account the number of servings in each box. Someone told her not to worry because she just had some sampling error. Comment on that advice.

The advice is right. A sampling error accounts for the difference in results based on the use of a sample rather than the entire population.

The advice is wrong. A sampling error only accounts for the difference in results based on the use of a sample rather than the entire population.

The advice is right. A sampling error accounts for the difference in results based on poor sample design.

The advice is wrong. A sampling error only accounts for the difference in results based on poor sample design.