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

question 72

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.Then $\mu$ _U is ______.

• A)10.055
• B)11.025
• C)11.255
• D)12.025
• E)12.255

Recognize the importance and functions of essential fats in the human body.

Calculate the energy content related to changes in body weight.

Identify psychological and physical health conditions related to body image and composition.

Understand methods and accuracy for measuring body composition.

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