Question

Excel

A relatively common transformation of your independent variables (x's) is adding the term x? to your model. This transformation takes the following form:

y_{i}=\hat{\beta}_{0}+\hat{\beta}_{1} x_{i}+\hat{\beta}_{2} x_{i}^{2}+\hat{\epsilon}_{i}

а. [3 Points] Why can you include both x; and x? in the model? That is, why does this not cause the model to have perfect multicollinearity?

b. Draw a graph with x on the x-axis and y =f(x) on the y-axis. Graph the relationship between

y=f(x)=\hat{\beta}_{0}+\hat{\beta}_{1} x+\hat{\beta}_{2} x^{2} \text { and } y \text { under the following scerarios: }

\text { I. }[3 \text { Points }] \hat{\boldsymbol{\beta}}_{1}, \hat{\boldsymbol{\beta}}_{2}>\mathbf{0}

\text { II. } \quad[3 \text { Points }] \hat{\boldsymbol{\beta}}_{1}>0, \hat{\beta}_{2}<0

\text { III. } \quad[3 \text { Points }] \hat{\boldsymbol{\beta}}_{1}<\mathbf{0}, \hat{\boldsymbol{\beta}}_{2}>\mathbf{0}  Verified

### Question 37563  Excel

If the activity “70% CD Design" is delayed by 2 days, will it delay the start date of its successor activities? If yes, then write down the name and IDs of the activities whose start dates will be delayed and by how many days? (10 Points)

### Question 37562  Excel

If activity "100% CD Complete" is delayed by 6 days, will it delay thetotal duration of the project? If yes, then by how many days and why?(10 Points)

### Question 37561  Excel

8. What are the IPAS (Immediate Predecessor Activities) of the activity"Receive Permit?" Write down the names and IDs of the activities. (10Points)

### Question 37560  Excel

7. What are the successor activities of the activity “90% CD Review/Owner?" Write down the names and IDs of those activities. (10Points)

### Question 37559  Excel

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### Question 37558  Excel

What is the total duration of the activities without using Precedence Diagram Method (PDM) method in this project? Also determine what isthe total duration of the project after the PDM was used to determine the critical paths of the project? (10 Points)

### Question 37557  Excel

What are the IPAS (Immediate Predecessor Activities) of the activity"Phase 2 - Interior Finishes?" Write down the names and IDs of the activities. (10 Points)

### Question 37556  Excel

3. What are the successor activities of the activity "Exterior Finishes?"Write down the names and IDs of the activities. (10 Points)2

### Question 37555  Excel

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### Question 37554  Excel

Write down the names and IDs of the activities which will not be delayed if this project is delayed by 20 days. Write down the reasons why these activities will not be delayed.

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