The Basic Difference Between a Point Estimate and a Confidence

question 102

Multiple Choice

The basic difference between a point estimate and a confidence interval is ________.

• A)a point estimate is used to estimate a sample statistic while a confidence interval is used to determine a population parameter
• B)confidence intervals are statistically more certain than point estimates
• C)a point estimate combines sampling error in a single value while a confidence interval is a range of value estimates
• D)a point estimate is a single value while a confidence interval is a range of values

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Definitions:

Extreme Scores

Values in a data set that are significantly higher or lower than the majority of the data, potentially acting as outliers.

Variability

Indicates the extent to which data points in a data set differ from the mean or each other.

Variance

A statistical measurement of the spread between numbers in a data set, representing how much the numbers differ from the average of the numbers.

Measures of Central Tendency

Statistical indices that describe the center point or typical value of a dataset, including the mean, median, and mode.