A Confidence Interval For $\mathrm { p }$ Can Be Constructed Using
A)

question 66

Multiple Choice

A confidence interval for $\mathrm { p }$ can be constructed using

• A) \(\hat { p } \pm z _ { \alpha / 2 } \sqrt { \frac { \hat { p } ( 1 - \hat { p } ) } { n } }\)
• B) \(\mathrm { p } \pm \mathrm { z } \frac { \sigma } { \mathrm { n } }\)
• C) \(\hat { \mathrm { p } } \pm \mathrm { z } \sqrt { \frac { \sigma } { \mathrm { n } } }\)
• D) \(\mathrm { p } \pm \mathrm { z } _ { \alpha / 2 } \sqrt { \frac { \mathrm { p } ( 1 - \mathrm { p } ) } { \mathrm { n } } }\) 3 Find the sample size needed for estimating a population proportion within a given margin of error.

Distinguish between direct and indirect (inverse) correlations and their implications.

Understand the basics and limitations of correlation coefficients in describing data.

Identify appropriate situations to use specific correlation coefficients, like the phi coefficient.

Comprehend the concept of partial correlations and the removal of mediating variable effects.

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