Asked by Jerry Powell on Jun 26, 2024
Verified
The paired-difference t-test for the main difference between two populations assumes:
A) that the populations are approximately normally distributed
B) that the sample variances are equal
C) that the sample means are equal
D) all of these
E) none of these
Paired-Difference T-Test
A statistical method used to compare the means of two related groups to determine if there is a significant difference between them.
Normally Distributed
A type of probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.
Sample Variances
A measure of the dispersion of a set of data points in a sample.
- Determine the appropriate circumstances to apply Student's t-distribution in hypothesis testing scenarios.
- Implement tests of hypotheses and formulate confidence intervals for population means and variances.
Verified Answer
Learning Objectives
- Determine the appropriate circumstances to apply Student's t-distribution in hypothesis testing scenarios.
- Implement tests of hypotheses and formulate confidence intervals for population means and variances.
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