The Following Data Was Collected as Part of a Study $\varepsilon$

question 46

Multiple Choice

The following data was collected as part of a study examining whether there is a differenc between the number of hours men and women watch television. The values represent the of hours a subject watched television on a designated Monday night. Lower values rank $\varepsilon$ higher ones.
$\begin{array}{l|llllllllllll}\text { Men } & 2.0 & 1.5 & 3.0 & 2.5 & 2.0 & 1.0 & 0.0 & 2.0 & 1.5 & 2.5 & 2.0 & 2.0 \\\hline \text { Women } & 2.0 & 2.5 & 1.0 & 1.0 & 1.5 & 2.5 & 2.0 & 1.0 & 2.0 & 1.5 & 1.0 & 0.0\end{array}$

Calculate $\mu _ { R } , \sigma _ { R }$ and the $z$ test value for the Wilcoxon rank sum test.

• A) \(\mu _ { R } = 150 , \sigma _ { R } = 5 , z = 4\)
• B) \(\mu _ { R } = 150 , \sigma _ { R } = 17.32 , z = 1.15\)
• C) \(\mu _ { R } = 12.25 , \sigma _ { R } = 12.25 , z = 9.61\)
• D) \(\mu _ { R } = 12.25 , \sigma _ { R } = 150 , z = 0.79\)

Identify and understand the impact of teratogens on prenatal development.

Understand the development and function of the umbilical cord and embryonic period developments.

Distinguish the sensory capabilities and reflexes of newborns.

Understand the concepts of assimilation and accommodation in cognitive development.

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Definitions:

Mean

The average of a set of numbers, calculated by dividing the sum of these numbers by the count of the numbers in the set.

Unimodal

Describing a distribution with a single prominent peak or mode, indicating the most commonly occurring value.

Median

The middle value in a sorted list of numbers, which separates the higher half from the lower half of the dataset.

Mean

A statistic that represents the average value in a set of numbers, calculated by adding all values and dividing by the number of values.