In this homework assignment, you will be working through two crashing problems and four earned value problems. All the information you need is included within this Homework packet. Make sure you answer all parts of the questions in their entirety.

Once you have worked through the problems, please post your responses to the Drop Box. Please refer to the course syllabus for the due date.

PROBLEM 1
Use the network diagram below and the additional information provided to answer the corresponding questions. [15 points]
a) The crash cost per day per activity. [10 points]

b) Which activities should be crashed to meet a project deadline of 10 days at minimum cost? What is the cost impact of crashing these activities? [3 points]

Path Duration: A-B-E = 12 days
B is cheapest ($50) 12 –10 = 2
2X 50 = 100
B for 2 days at $100

c) Find the new budget (or cost of the project). [2 points]

PROBLEM 2
Use the network diagram below and the additional information provided to answer the corresponding questions. [13 points]
a) The crash cost per day per activity. [10 points]

A = (800-300) / (5-3) = 500/2 = 250
B = (350-250) / (3-1) = 100/2 = 50
C = (900-400) / (6-4) = 500/2 = 250
D = (500-200) / (5-2) = 300/3 = 100

b) Which activities should be crashed to meet a project deadline of 13 days at minimum cost? What is the cost impact of crashing these activities? [3 points]

Path Duration: B-C-D = 14 days
B is cheapest ($50) 14 -13 = 1
1 x 50 = 50
B for 1 day at $5

PROBLEM 3 [8 points]
MonthACWPBCWSBCWP
22$540$523$535

...points]
Month
AC
PV
EV
22
$540
$523
$535
a) Calculate the cost variance (CV). [2 points]
CV = EV – AC = $535 – $540 = -$5
b) Is the CV over or under budget? [2 points]
Over budget by $5
c) Calculate the schedule variance (SV). [2 points]
SV = EV – PV = $535 - $523 = $12
d) Is the SV ahead of or behind schedule? [2 points]
Ahead of schedule
PROBLEM 4 [8 points]
Month
AC
PV
EV
5
$34
$42
$39
a) Calculate the cost performance index (CPI). [2 points]
CPI =EV/AC = $39/$34 = 1.15
b) Is the project cost efficient or not efficient? [2 points]
The project is cost efficient
c) Calculate the schedule performance index (SPI). [2 points]
SPI = EV/PV = $39/$42 = 0.93
d) Is the schedule efficient or not efficient? [2 points]
The schedule is not relatively efficient
PROBLEM 5 [8 points]
Day
AC
PV
EV
65
$550
$735
$678
a) Calculate the cost variance (CV). [2 points]
CV = EV – AC = $678 - $550 = $128
b) Calculate the cost performance index (CPI). [2 points]
CPI =EV/AC = 1.23
c) Calculate the schedule variance (SV). [2 points]
SV = EV – PV = -$57
d) Calculate the schedule performance index (SPI). [2 points]
SPI = EV/PV = 0.92
d) Given these data, what should a project manager do with respect to this project?
The project is ahead on budget but behind in schedule,...

...Introduction:
The first eating chocolate recipe was developed by Dr. Hans Sloane, on histraveling to South America where he had focused on cocoa and food values. Fromthis recipe Cadbury had introduced the milk chocolates.The Cadbury dairy milk was first introduced in UK in 1905 and then it wasintroduced in India in 1948. Cadbury Dairy Milk has been the market leader in thechocolate category for years and has been a part of every Indian's moments of happiness, joy and celebration. Today, Cadbury Dairy Milk alone holds 30% valueshare of the Indian chocolate market.
Independent Variables affecting demand of Cadbury Dairy Milk
•
Price:
This product is a brand loyal product, so if there is a slight increase
inthe price, the demand of the product will remain unaffected. But if there is adecrease in the price, the demand of the product may slightly increase.(Source: Galaxy Varieties, Rajkot)
•
Income:
If the income of the people increases, the demand of the product alsoincreases and if the income of the people decreases, the demand of the productdecreases because then people will go for lower price chocolate like éclair or melodyof Rs.1 or Rs. 2. So, there is a positive relationship between income and the productdemand.(Source: Survey Result)
•
Population & Age group:
This product is meant for the children, adults andalso for the old people so the age groups are not much affected the demand of the product so demand remain same and by the increase in the...

...this issue then it would lead to a drastic decrease of this problem as we are the sole reasons for its existence.
5. Greenhouse gas emissions:
Issue- A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.
Reasons- Electricity production, industries, transportation, agriculture, commercial and residential waste.
Remedies- Energy conservation, using alternatives, optimum utilization of resources, reduction on the dependency on machines that emit these harmful gases.
Opinion- If this issue is not brought under control it would lead to the destruction of the planet very soon. Thus every Government must take sufficient measures in order to control the release of such gases into the environment.
Reference:
http://www.conserve-energy-future.com/causes-effects-solutions-of-deforestation.php
http://www.eschooltoday.com/global-water-scarcity/your-role-in-water-preservation.html
http://b4tea.com/information/noise-pollution-causes-effects-solutions-for-control/
http://en.wikipedia.org/wiki/Environmental_issues_in_India
An Assignment On
The Environmental Issues In The Society
Submitted To
The School Of Excellence
For the partial fulfillment of the course on Environmental Studies
By,
13-CO-028
Nandha Kishore Mahadevan
Jan 05, 2015
Loyola College (Autonomous)
Chennai-34
Introduction
This assignment attempts to highlight...

...
3.13 a. Suppose that a digitized TV picture is to be transmitted from a source that uses a
matrix of 480 x 500 picture elements (pixels), where each pixel can take on one
of 32 intensity values. Assume that 30 pictures are sent per second. (This digital
source is roughly equivalent to broadcast TV standards that have been adopted.)
Find the source rate R (bps).
(30 pictures/s) (480 × 500 pixels/picture) = 7.2 × 106 pixels/s
Each pixel can take on one of 32 values and can therefore be represented by 5 bits:
R = 7.2 × 106 pixels/s × 5 bits/pixel = 36 Mbps
b. We use the formula: C = B log2 (1 + SNR)
B = 4.5 × 106 Hz = bandwidth, and
SNRdB = 35 = 10 log10 (SNR), hence
SNR = 1035/10 = 103.5, and therefore
C = 4.5 × 106 log2 (1 + 103.5) = 4.5 × 106 × log 2 (3163)
C = (4.5 × 106 × 11.63) = 52.335 × 106 bps
c. Discuss how the parameters given in part (a) could be modified to allow transmission
of color TV signals without increasing the required value for R.
10 × 3 = 30 levels for each pixel element
3.15 What is the channel capacity for a teleprinter channel with a 300-Hz bandwidth and a
signal-to-noise ratio of 3 dB, where the noise is white thermal noise?
W = 300 Hz (SNR)dB = 3
SNR = 100.3
C = 300 log2 (1 + 100.3) = 300 log2 (2.995) = 474 bps
3.16 A digital signaling system is required to operate at 9600 bps.
a. If a signal element encodes a 4-bit word, what is the minimum required bandwidth of the channel?
Log2 M = 4
C = 9600 = 2B × 4, and B = 1200...

...As the largest, most populated and fastest growing continent on Earth, Asia may be the region of the world where the most animal species face extinction due to conflicts with humans. The rapid development of land for use by humans all over Asia poses a serious threat to many animal species, and many Asian governments do too little to protect their own environments.
There are some areas of improved awareness about the risks of overly rapid expansion, and the protection of many iconic species - like Tigers and Giants Pandas - may benefit from focused conservation efforts. But many other animals are also threatened, and they don't always get the attention they need to ensure their continued survival.
The International Union for Conservation of Nature (IUCN) is an international organization whose mission is to encourage and assist countries around the world with maintaining their natural diversity of plant and animal species.
Let us now have a look at the different endangered species in Asia’s forests
Giant Panda
They once lived throughout China, but now the population of the Giant Panda is estimated to be around 1000-2000.
Giant Pandas are completely dependent upon bamboo forests, and in the past they were able to roam from area to area to locate sufficient amounts of food.
Deforestation for farming and to support the growing population has reduced the habitat of the Panda thus leading to their declining population.
In the past, poaching was the greatest threat to the...

...Question 1: (4 points)
Consider the ski resort satisfaction data we used in class (“satisfaction.sav” in Week 7 folder). This is data based on a survey of 500 users of a ski resort. In class we did part of the analysis. In this question you will be asked to redo some of the analysis and complete the rest. For part a), b) and c), write down your null and alternative hypotheses and then discuss the hypothesis testing results based on SPSS output. Please show your SPSS output for part a), b), and c).
a) Is there a significant association between usage frequency and satisfaction? If so, which segments are less satisfied?
Null Hypothesis H0: usage frequency and satisfaction are not associated
Alternative Hypothesis H1: usage frequency and satisfaction are associated
Alpha- 5%
|Chi-Square Tests |
| |Value |df |Asymp. Sig. (2-sided) |
|Pearson Chi-Square |60.882a |2 |.000 |
|Likelihood Ratio |62.613 |2 |.000 |
|Linear-by-Linear Association |58.103 |1 |.000 |
|N of Valid Cases |500 | |...

...Statistics Homework – Week 2
Chapter 1:
1.1 -
Three different types of drinks are sold at a fast food restaurant – soft drinks, fruit juices and coffee.
A) Explain why the type of drinks sold is an example of a categorical variable
Categorical variables take values that fall into one or more categories. As there are 3 different types of drinks, they would all fall into their own categories rather than numerical.
B) Explain why the type of drinks sold is an example of a nominally scaled variable
The type of drinks sold is an example of a nominally scaled variable as there are no rankings involved between the drinks. For example, each type of drink is equal.
1.3 -
Suppose that you measure the time it takes to download an MP3 file from the internet.
A) Explain why the download is a numerical variable
Numerical variables record numbers through observations. As the time taken to download the file produces a number represented by time, the download is a numerical variable.
B) Explain why the download time is a ratio scaled variable
The download time is a ratio scaled variable as the time differences involve a true zero point, meaning that they use the same time scale.
1.7 -
Suppose the following information is collected from Andrew and Fiona Chen on their application for a home mortgage loan at metro home loans:
A) Monthly expenses; $1 820
Type: Numerical - Continuous
Level of measurement: Interval scale
B) Number of children...