A Researcher Wants to Determine Whether the Means of Two $\quad$

question 2

Multiple Choice

A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples, one from each population, shown in the following table: $\quad$ $\quad$ $\quad$ $\quad$ Sample I $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ Sample II
$\begin{array}{llll|lllll}\hline 11.5 & 15.7 & 22.8 & 22.5 & 12.6 & 13.8 & 17.5 & 10.7 & 13.5 \\12.4 & 25.3 & 16.1 & 25.1 & 14.8 & 11.8 & 14.7 & 10.8 & 12.7\end{array}$

She uses the Mann-Whitney U test and a significance level of 0.05.This is a ______ test, and the critical ______.

• A)one-tailed; value is 1.96
• B)two-tailed; values are ±1.96
• C)one-tailed; value is 1.645
• D)two-tailed; values are ±1.645
• E)one-tailed; value is \(\pm\)1.96

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Definitions:

Effective Listening

The active process of hearing, understanding, remembering, evaluating, and responding to spoken messages.

Organizational Relationships

The connections and interactions between individuals within an organization, affecting its culture, communication, and effectiveness.

Multitask

The ability to perform more than one task or activity at the same time.

Assigning Meaning

The process of giving significance or interpretation to something based on one's own perceptions or beliefs.