Question

the provides a range that helps estimate how much a sample result might differ from the true population value.
the formula for the margin of error requires the z - score, the standard deviation, and the sample.
the confidence is a measure of how confident we are that the true population parameter falls within the margin of error.
random sampling ensures that every member of the has an equal chance of being selected.
larger sizes reduce the margin of error, making results more reliable.

Explanation:

1. The margin - of - error gives a range for sample - population difference.
2. Margin - of - error formula needs Z - score, standard deviation and sample size.
3. Confidence level shows confidence in population parameter being in margin of error.
4. Random sampling ensures equal selection chance for population members.
5. Larger sample sizes reduce margin of error for more reliable results.

Answer:

1. Margin of error
2. Size
3. Level
4. Population
5. Sample