Given the Following Work Sampling Data, Based Upon 100 Random

question 40

Short Answer

Given the following work sampling data, based upon 100 random observations of a particular worker: $$\begin{array} { l c } \text { Activity } & \text { Times Observed } \\\hline \text { A } & 20 \\\text { B } & 50 \\\text { C } & 10 \\\text { Others } & 20\end{array}$$ What is the estimated proportion of time this worker spends performing activity A?

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Definitions:

Peptidoglycan

A complex polymer that forms a mesh-like layer outside the plasma membrane of most bacteria, providing structural support and shape.

Plasma Membrane

A thin, flexible barrier that surrounds a cell, regulating the movement of substances in and out of the cell.

Ribosomes

Ribosomes are cellular structures that synthesize proteins from amino acids during the process of translation, found in both prokaryotic and eukaryotic cells.

Endoplasmic Reticulum

A network of membranous tubules within the cytoplasm of a cell, involved in the transport of materials.