Entity Relationship (ER) Diagram: The following figure illustrates the ER Diagram for Hudson Engineering Group in (HEG) Crow’s Foot notation: Explanation: In above ERD, A trainee can take several class and each class can have more trainees, so there is an “M: N” relationship between the entities TRAINEE and CLASS. Hence a composite entity “ENROLLMENT” is act as bridge between those entities. The relationship between the entities INSTRUCTOR and CLASS is 1: M. Because a class is taken by only one instructor but an instructor can take more classes. The relationship between the entities COURSE and CLASS is also1: M.

Question

My daughter is a Girl Scout and it is time for our cookie sales. There are 15 neighbors nearby and she plans to visit every neighbor this evening. There is a 40% likelihood that someone will be home. If someone is home, there is an 85% likelihood that person will make a purchase. If a purchase is made, the revenue generated from the sale follows the Normal distribution with mean $18 and standard deviation $5. Using @RISK, simulate our door-to-door sales using at least 1000 iterations and report the expected revenue, the maximum revenue, and the average number of purchasers. What is the probability that the revenue will be greater than $120?

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Chapter 4, Problem 5P

a.

Program Plan Intro

Entity Relationship (ER) Diagram:

The following figure illustrates the ER Diagram for Hudson Engineering Group in (HEG) Crow’s Foot notation:

Explanation:

In above ERD, A trainee can take several class and each class can have more trainees, so there is an “M: N” relationship between the entities TRAINEE and CLASS. Hence a composite entity “ENROLLMENT” is act as bridge between those entities.

The relationship between the entities INSTRUCTOR and CLASS is 1: M. Because a class is taken by only one instructor but an instructor can take more classes.

The relationship between the entities COURSE and CLASS is also1: M.

b.

Explanation of Solution

Relationship:

The relationship between the entities INSTRUCTOR and CLASS is 1: M. Because a class is taken by only one instructor but an instructor can take several classes...

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My daughter is a Girl Scout and it is time for our cookie sales. There are 15 neighbors nearby and she plans to visit every neighbor this evening. There is a 40% likelihood that someone will be home. If someone is home, there is an 85% likelihood that person will make a purchase. If a purchase is made, the revenue generated from the sale follows the Normal distribution with mean $18 and standard deviation $5. Using @RISK, simulate our door-to-door sales using at least 1000 iterations and report the expected revenue, the maximum revenue, and the average number of purchasers. What is the probability that the revenue will be greater than $120?

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