Mr McPiln Wants to Survey Customers on Whether They Were

question 8

Multiple Choice

Mr. McPiln wants to survey customers on whether they were happy with their customer service experience during last year's holiday season. However, Mr. McPiln is hesitant to do so because it has been a while since the customers had this experience. Mr. McPiln is concerned about:

• A) sample bias.
• B) retrospective bias.
• C) hawthorn effect.
• D) attrition.

---

Definitions:

Margin of Error

A measure of the range of uncertainty in survey results, indicating how much the survey results may differ from the true population value.

Confidence Interval

A medley of values, from statistical analysis of samples, forecasted to include the value of an unknown population criterion.

Sampling Error

The error that occurs when the sample selected does not perfectly represent the population, leading to inaccuracy in results or conclusions.

Confidence Interval

A range of values derived from sample data that is likely to contain the true population parameter with a certain level of confidence.