Assume That You Plan to Use a Significance Level Of \alpha

question 42

Multiple Choice

Assume that you plan to use a significance level of $\alpha = 0.05$ to test the claim that $p _ { 1 } = p _ { 2 }$ Use the given sample sizes and numbers of successes to find the pooled estimate $\bar { p }$ Round your answer to the nearest thousandth.
$\begin{array} { l l } n _ { 1 } = 677 & n _ { 2 } = 3377 \\x _ { 1 } = 172 & x _ { 2 } = 654\end{array}$

• A) 0.163
• B) 0.452
• C) 0.204
• D) 0.408

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Definitions:

Ventricular Repolarization

The process by which the heart's ventricles return to their resting state after contraction, indicated by the T-wave in an ECG.

ECG

Electrocardiogram, a test that records the electrical activity of the heart to detect heart problems.

T Wave

A feature on an electrocardiogram (ECG) representing the repolarization of the ventricles of the heart.

R Wave

Part of the QRS complex in an electrocardiogram (ECG) representing ventricular depolarization, which precedes ventricular contraction.