What Value Is Estimated with a Confidence Interval Using the Repeated-Measures

question 2

Multiple Choice

What value is estimated with a confidence interval using the repeated-measures t statistic?​

• A)​the mean for a sample of difference scores
• B)​the mean for a population of difference scores
• C)​the difference between two population means
• D)​the difference between two sample means

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Definitions:

Normally Distributed

Describes a probability distribution that is symmetrical around the mean, with a specific bell shape indicating that data near the mean are more frequent in occurrence than data far from the mean.

Sample Variances

Measures of the dispersion or spread within a set of sample data, quantifying how much the samples differ from each other.

Test Statistic

A calculated value from sample data used to determine if a hypothesis about a population parameter is supported.

Random Samples

Selections made in such a way that each individual in the population has an equal chance of being included in the sample.