A Project Consists of Nine Major Activities, as Shown Below

question 128

Essay

A project consists of nine major activities, as shown below. There are three separate paths in the network: a-c-f, b-d-g, and e-h-i.
(A) What is expected project duration time?
(B) Determine the probability that the project will take more than 35 weeks to complete. (All times are in weeks.)
$$\begin{array} { l l l } \text { Activity } & \text { Exp. Duration } & \text { Std.Dev. } \\\hline \text { a } & 7 & 1 \\\text { b } & 10 & 1 \\\text { c } & 9 & 2 \\\text { d } & 11 & 2 \\\text { e } & 16 & 2 \\\text { f } & 14 & 2 \\\text { g } & 10 & 2 \\\text { h } & 8 & 1 \\\text { I } & 8 & 2\end{array}$$

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Definitions:

Schachter-Singer Experiment

A psychological experiment that demonstrated the role of cognitive factors in emotional experience, particularly highlighting the interaction of physiological arousal and cognitive labels in emotion.

James-Lange Theory

A theory suggesting that emotions result from the perception of bodily reactions to stimuli, implying that physical arousal precedes the emotional experience.

Visceral Reactions

Refers to the instinctive, deep-seated physical reactions that occur in response to a stimulus, often bypassing rational thought.

Emotions

Affective responses (such as joy, sadness, pride, and anger), which are characterized by loosely linked changes in behavior (how we act), subjective experience (how we feel), and physiology (how our bodies respond).