Consider the following data for two variables, and .
| 7 | 30 | 21 | 18 | 25 | |
| 10 | 27 | 23 | 16 | 21 |
a. Develop an estimated regression equation for the data of the form . Comment on the adequacy of this equation for predicting . Enter negative value as negative number.
| The regression equation is | ||||||||||||||||||||||||
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| Analysis of Variance | ||||||||||||||||||||||||
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b. Develop an estimated regression equation for the data of the form y=b0+b1x+b2x2 . Comment on the adequacy of this equation for predicting y . Enter negative value as negative number. If your answer is zero, enter "0".
| The regression equation is | ||||||||||||||||||||||||
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| Analysis of Variance | ||||||||||||||||||||||||
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c.Using the appropriate regression model, predict the value of y when x=2 .
In: Statistics and Probability
In: Accounting
1. Write the C++ code for a program that calculates how many days are left until Halloween, when given as an input how many weeks are left until Halloween. Use variables named weeks and days.
------------
2. What header file must be included
- To perform mathematical functions like sqrt?
- To use cin and cout?
- To use stream manipulators like setprecision?
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3. What value will be stored in the variable t after each of the following statements executes?
1. t = (12 > 1);
2. t = (2 < 0);
3. t = (5 == (3 * 2));
4. t = ( 5 == 5);
----------------
4. Convert the following conditional expression into an if/else
statement:
q = (x < y) ? (a+b) : (x * 2);
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5. Write a function named getNumber which uses a reference parameter to accept an integer argument. The function should prompt the user to enter a number in the range of 1 through 100. The input should be validated and stored in the parameter value.
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6. Write a C++ statement that prints the message “The number is valid.” If the variable temperature is within the range -50 through 150
In: Computer Science
The following regression output was obtained from a study of architectural firms. The dependent variable is the total amount of fees in millions of dollars.
| Predictor | Coefficient | SE Coefficient | t | p-value | ||||||||
| Constant | 7.617 | 2.998 | 2.541 | 0.010 | ||||||||
| x1 | 0.224 | 0.069 | 3.246 | 0.000 | ||||||||
| x2 | ? | 1.144 | 0.559 | ? | 2.047 | 0.028 | ||||||
| x3 | ? | 0.071 | 0.120 | ? | 0.592 | 0.114 | ||||||
| x4 | 0.675 | 0.354 | 1.907 | 0.001 | ||||||||
| x5 | ? | 0.057 | 0.025 | ? | 2.280 | 0.112 | ||||||
| Analysis of Variance | ||||||||||
| Source | DF | SS | MS | F | p-value | |||||
| Regression | 5 | 2,113.40 | 422.7 | 7.37 | 0.000 | |||||
| Residual Error | 48 | 2,751.10 | 57.31 | |||||||
| Total | 53 | 4,864.50 | ||||||||
x1 is the number of architects employed by the company.
x2 is the number of engineers employed by the company.
x3 is the number of years involved with health care projects.
x4 is the number of states in which the firm operates.
x5 is the percent of the firm’s work that is health care?related.
Write out the regression equation. (Negative answers should be indicated by a minus sign. Round your answers to 3 decimal places.)
How large is the sample? How many independent variables are there?
c-1. At the 0.05 significance level, state the decision rule to test: H0: ?1 = ?2 = ?3 =?4 = ?5 = 0; H1: At least one ? is 0. (Round your answer to 2 decimal places.)
c-2. Compute the value of the F statistic. (Round your answer to 2 decimal places.)
c-3. What is the decision regarding H0: ?1 = ?2 = ?3 = ?4 = ?5 = 0?
d-1. State the decision rule for each independent variable. Use the 0.05 significance level. (Round your answers to 3 decimal places.)
| For x1 | For x2 | For x3 | For x4 | For x5 | ||||
| H0: ?1 = 0 | H0: ?2 = 0 | H0: ?3 = 0 | H0: ?4 = 0 | H0: ?5 = 0 | ||||
| H1: ?1 ? 0 | H1: ?2 ? 0 | H1: ?3 ? 0 | H1: ?4 ? 0 | H1: ?5 ? 0 | ||||
d-2. Compute the value of the test statistic. (Negative answers should be indicated by a minus sign. Round your answers to 3 decimal places.)
d-3. For each variable, make a decision about the hypothesis that the coefficient is equal to zero.
In: Statistics and Probability
Write a C++ or Java program name that conducts the BFS traversal of a graph and displays city names in the range of hop(s) from a starting city
Input format: This is a sample input from a user.
|
The first line (= 4 in the example) indicates that there are four vertices in the graph. The following four lines describe the names of four cities. The next line (= 6 in the example) indicates the number of edges in the graph. The following six lines are the edge information with the “source city” and “destination city”. The following city (= Monterey in the example) is the starting city, and the last line (= 2 in the example) indicates the hops from the starting city. Thus, the problem is to list the city names that can be reached from the source in two hops. This is the graph with the input information.
Sample Run 0: Assume that the user typed the following lines
4
Monterey
LA
SF
SD
6
Monterey LA
LA SD
SD Monterey
SF Monterey
SF LA
SF SD
Monterey
2
This is the correct output. Your program should present the city names with the hop in the ascending order like below. Note that LA can be reached from Monterey in one hop, Monterey in zero hop, and SD in two hops. For the problem, you can assume that the city name is always one word. Also, your program should consider only the minimum number of hops from the starting city.
LA:1
Monterey:0
SD:2
Sample Run 1: Assume that the user typed the following lines
4
Monterey
LA
SF
SD
6
Monterey LA
LA SD
SD Monterey
SF Monterey
SF LA
SF SD
LA
1
This is the correct output.
LA:0
SD:1
Sample Run 2: Assume that the user typed the following lines
5
Fresno
LA
SD
SF
NYC
6
SD LA
SD NYC
LA NYC
SF Fresno
SF SD
Fresno SD
SF
2
This is the correct output.
Fresno:1
LA:2
NYC:2
SD:1
SF:0
In: Computer Science
Q1) Abu Dhabi University has been receiving multiple complaints over the past years regarding their IT System. The student portal is very slow, inefficient and not user friendly. Due to these complaints, the IT decided to upgrade/redesign the student portal. Their estimated project value is 800,000 AED. They want to achieve this by Fall of 2020.
You have been assigned as a Project Manager for this Project.
You are required to:
Q2) As a member in the project selection team of a company, you are required to analyze the following two projects using NPV (Net Present Value) and ROI (Return on investment).
Details of the two projects are shown as in Tables 1 and 2:
|
Project A |
Year 1 |
Year 2 |
Year 3 |
Year 4 |
|
Benefits |
$0 |
$2,000 |
$3,000 |
$4,000 |
|
Costs |
$3,000 |
$2,000 |
$1,000 |
$1,000 |
Table 1
|
Project B |
Year 1 |
Year 2 |
Year 3 |
Year 4 |
|
Benefits |
$1,000 |
$2,000 |
$4,000 |
$4,000 |
|
Costs |
$2,000 |
$2,000 |
$2,000 |
$2,000 |
Table 2
Q3) A financial services company has a long list of potential projects to consider this year. Managers at this company must decide which projects to pursue and how to define the scope of the projects selected for approval. The company has decided to use a weighted scoring model to help in project selection, using criteria that map to corporate objectives. All projects selected must develop a WBS using corporate guidelines.
You are part of a team that will analyze proposals and recommend which projects to pursue. Your team has decided to create a weighted scoring model using the following criteria and weights:
Criteria Weight
1. Enhances new product development 20%
2. Streamlines operations 15%
3. Increases cross-selling 30%
4. Has good NPV 35%
To determine the score for the last criterion, your team has developed the following scoring system:
The following is information for three potential projects:
Develop a spreadsheet to calculate the NPVs and weighted scores for the three projects. Use a 10 percent discount rate for the NPV calculations.
In: Finance
1.
Given the following pathway to produce blue flowers, assume that A and B are dominant alleles specifying functional enzymes A and B, and a and b are recessive alleles specifying defective enzymes. Assuming complete dominance, if a plant with the genotype AABb was mated with a plant with the genotype Aabb, what proportion of their offspring will be blue?
A B
White Pigment ⟶Red Pigment⟶Blue Pigment
1/16
1/8
1/4
1/2
question2
In a pathway associated with duplicate gene action (redundancy), having a functional Gene A or Gene B is enough to produce purple flowers. If two heterozygous plants are mated, what phenotypic ratio will we see in their offspring regarding flower color?
9 purple: 7 white
13 purple: 3 white
15 purple: 1 white
question 3
A man with type A blood (IAi) has a child with a woman with type B blood (IBi). What are the chances that their child is type AB?
1/8
1/4
1/2
3/4
question 3
Which of the following sequences would run the fastest through an agarose gel during gel electrophoresis?
Group of answer choices
5’- AT -3’
5’- ATGCTGC -3’
5’- ATGCTGCAGTTA -3’
All of these sequences would run at the same speed
In: Biology
I NEED CALCULATION/PROCESSES TO UNDERSTAND IT.
Company A, as lessee, enters into a lease agreement on January 1, 2017, for equipment. The following data are relevant to the lease agreement:
1. The term of the noncancelable lease is 4 years, with no renewal option. Payments of $845,378 are due on January 1 of each year.
2. The fair value of the equipment on January 1, 2017 is $3,200,000. The equipment has an economic life of 6 years with an unguaranteed residual value of $200,000.
3. Company A depreciates similar machinery it owns on the straight-line basis.
4. The lessee pays all executory costs.
5. An implicit rate of 8% was used in computing the lease payments.
Instructions:
(b) Prepare the journal entries on Company A's books that relate to the lease agreement for the following dates: (Round all amounts to the nearest dollar.)
1. January 1, 2017.
2. December 31, 2017.
3. January 1, 2018.
4. December 31, 2018.
5. January 1, 2019.
|
Date |
Description |
Debit |
Credit |
(c) If this was an operating lease, what would the journal entry be on January 1, 2017 and December 31, 2017?
|
Date |
Description |
Debit |
Credit |
In: Accounting
|
Year-1 |
Year-2 |
Year-3 |
Year-4 |
Year-5 |
Year-6 |
|
|
Project Cost (Rs million) |
50 |
30 |
||||
|
Sales (million units) |
3 |
4 |
5 |
5 |
||
|
Selling price (Rs/Unit) |
10 |
15 |
20 |
20 |
||
|
Cost of production (Rs million) |
20 |
50 |
80 |
70 |
||
|
Depreciation (Rs million) |
2 |
2 |
2 |
2 |
||
|
Salvage value (Rs million) |
20 |
In: Finance
The following table lists the components needed to assemble an end item, lead times (in weeks), and quantities on hand. Item Lead Time Amount on Hand Direct Components End 1 0 L(2), C(1), K(3) L 2 11 B(2), J(3) C 3 17 G(2), B(2) K 4 23 H(4), B(2) B 3 34 J 3 25 G 3 7 H 3 0 a. If 43 units of the end item are to be assembled, how many additional units of B are needed? (Hint: You don’t need to develop an MRP plan.) Additional units b. An order for the end item is scheduled to be shipped at the start of week 11. What is the latest week that the order can be started and still be ready to ship on time? (Hint: You don’t need to develop an MRP plan.) The latest week
In: Operations Management