A Confidence Interval For $\left( \mu _ { 1 } - \mu _ { 2 } \right)$

question 85

Multiple Choice

A confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$ is $( - 5,8 )$ . Which of the following inferences is correct?

• A) \(\mu _ { 1 } = \mu _ { 2 }\)
• B) \(\mu _ { 1 } > \mu _ { 2 }\)
• C) \(\mu _ { 1 } < \mu _ { 2 }\)
• D) no significant difference between means

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Definitions:

Simplifies Data

The process of making complex data more understandable and accessible by reducing complexity or focusing on important details.

Correlation

A statistical measure that describes the extent to which two variables change together, but doesn't necessarily indicate causation.

ANCOVA

Short for Analysis of Covariance, a statistical technique that adjusts the means of dependent variables for one or more covariates before comparing the means of different groups.

Linear Regression

Linear Regression is a statistical method for modeling the relationship between a dependent variable and one or more independent variables, indicating how the dependent variable changes as the independent variable(s) change.