1.4 Test your knowledge on margin of error

Fill in the blank: Margin of error is the ___ amount that the sample results are expected to differ from those of the actual population.

A. average

B. median

C. maximum

D. minimum

C. Maximum

What elements are required to calculate margin of error? Select all that apply.

A. Mean calculation

B. Population size

C. Confidence level

D. Sample size

B. Population size

C. Confidence level

D. Sample size

In a survey about a new gardening product, 80% of respondents report they would buy the product again. The margin of error for the survey is 5%. Based on that margin of error, what range reflects the population's true response?

A. 72-78%

B. 70-80%

C. 75-80%

D. 75-85%

D. 75-85%

In an employee satisfaction survey, 60% of respondents report that they prefer commuting to work via train. The margin of error for the survey is 4%. Based on that margin of error, what range reflects the population's true response?

A. 50-60%

B. 46-54%

C. 64-68%

D. 56-64%

D. 56-64%