Category: Mathematics

Case 1
The following is part of an ANOVA table that was obtained from data regarding three treatments and a total of 15 observations.
Source of
Variation
Sum of
Squares
Degrees of
Freedom
Between Treatments
64
Error (Within Treatments)
96
Refer to case 1 . The number of degrees of freedom corresponding to between treatments is
Question 1 options:
12
2
3
4
Refer to case 1 . The mean square between treatments (MSTR) is
Question 2 options:
36
16
8
32
Refer to case 1 . The number of degrees of freedom corresponding to within treatments is
Question 3 options:
12
2
3
15
Refer to case 1. The computed F test statistics is
Question 4 options:
32
8
0.667
4
Refer to Case 1. If at 95% confidence, we want to determine whether or not the means of the populations are equal, using Excel the p-value is
Question 5 options:
TDIST (F, df1,df2)
FDIST(t,df1,df2)
FDIST (F,df1,df2)
None of these alternatives is correct
Refer to Case 1 . If p-value between 0.05 to 0.1
the conclusion of the test is that the means
Question 6 options:
are equal
may be equal
are not equal
None of these alternatives is correct.
Case 2
The following information regarding a dependent variable Y and an independent variable X is provided
Refer to case 2. The total sum of squares (SST) is
Question 7 options:
-156
234
1870
1974
Refer to case 2. The sum of squares due to error (SSE) is
Question 8 options:
-156
234
1870
1974
Refer to case 2. The mean square error (MSE) is
Question 9 options:
1870
13
1974
935
Refer to case 2. The slope of the regression equation is
Question 10 options:
-0.667
0.667
100
-10
Refer to case 2. The Y intercept is
Question 11 options:
-0.667
0.667
100
-100
Refer to case 2. The coefficient of correlation is
Question 12 options:
-0.2295
0.2295
0.0527
-0.0572
Case 3
In order to determine whether or not the number of automobiles sold per day (Y) is related to price (X1 in $1,000), and the number of advertising spots (X2), data were gathered for 7 days. Part of the regression results is shown below.
Coefficient
Standard Error
Intercept
0.8051
X1
0.4977
0.4617
X2
0.4733
0.0387
Analysis of Variance
Source of
Degrees
Sum of
Mean
Variation
of Freedom
Squares
Square
F
Regression
40.700
Error
1.016
Determine the least squares regression function relating Y to X1 and X2.
Question 13 options:
y-estimated=7.017-8.6233X1+0.0858X2
y-estimated=-7.0174+8.6233X1+0.0858X2
y-estimated=7.0174+8.6233X1+0.0858X2
non of these alternatives is correct
Refer to case 3
If the company charges $20,000 for each car and uses 10 advertising spots, how many cars would you expect them to sell in a day?
Question 14 options:
15 (rounded from 15.49)
16
17
14
Refer to case 3
At a = 0.05, test to determine if the equation developed represents a significant relationship between the independent variables and the dependent variable.
The test statistics is
Question 15 options:
F
t
We can use F or t
None of these alternatives is correct.
Refer to test 3
At a = 0.05, test to determine if the fitted equation developed in Part a represents a significant relationship between the independent variables and the dependent variable.
to find p-value we should use excel function
Question 16 options:
p-value is FDIST (F,df1,df2)
p-value is FDIST (t,df1,2)
p-value is FDIST (t,df2,2)
None of these alternatives is correct
Refer to case 3. At a = 0.05, test to determine if the fitted equation developed in Part a represents a significant relationship between the independent variables and the dependent variable.
Conclusion is
Question 17 options:
F = 80.12; p-value > .01; Don’t reject H0
The model is not significant at alpha 0.05
F = 8.12
F = 80.12; p-value < .01 (almost zero); reject H0 and conclude that te model is significant at alpha 0.05 None of these alternatives is correct. Refer to case 3 At 95% confidence, test to see if price is a significant variable. Use test statistics Question 18 options: F t both t and F None of these alternatives is correct. Refer to case 3. At 95% confidence, test to see if price is a significant variable. Conclusion is Question 19 options: t = 0.008; p-value less than alpha . Reject H0; price is a significant variable at alpha 0.05 t = 1.078; p-value is between 0.1 and 0.2; do not reject H0; price is not a significant variable at 95% confidence. t = 1.078; p-value is less than 0.1 ; reject H0 price is a significant variable at 95% confidance None of these alternatives is correct. Refer to case 3 Determine the multiple coefficient of determination and interpret this number Question 20 options: 0.9756. 97.56% of the variation of the number of automobiles sold per day is explained by the variation in price and the number of advertising spots. 0.9756 97.56% of the variation of the number of automobiles sold per day is explained by the variation in price. 0.3467 34.67% of the variation of the number of automobiles sold per day is explained by the variation in price. 0.7654 76.54% of the variation of the number of automobiles sold per day is explained by the variation in the number of advertising spots.

assignment instructions
1.  
The RESPONSE is an opportunity to earn half the lost points back.  If you earned a 100% on the exam, you don’t need to complete this assignment.  When you complete the response, you can include your work, however you must answers the written questions that are part of the format.  It is the sentences that are graded. This is an essay assignment.  Write complete sentences with proper capitalization and punctuation.
Download the Template:  Voting Theory Exam Response.pdf Download Voting Theory Exam Response.pdf

   If you need multiple pages, that is fine.
Do your work in the PDF or on paper with pen or pencil.  If you do not have a printer, use regular notebook paper, number problems and answer the questions.
For each problem missed on the exam. 
1. My original answer and thinking during the exam.
2. My corrected answer, and my reasoning and justification for my new answer.
Both questions should take at least two sentences. Most students use 3 to 4. It’s not just about getting the correct answer, but knowing the process for doing so. Think of it as convincing me that you know how to do the problem now.
Use CamScanner or an app of your choice to make a single PDF of your work.  
REVIEW THE PDF BEFORE ATTACHING.  It must be legible.  
Upload 1 PDF file.  If you need help making or uploading the PDF, please ask.
Previous
Next
2.
voting theory exam responsive.pdf. see the attach file
3.
incorrect answers are number 3, 5 and 8. see the attach link: 
https://www.icloud.com/photos/#/icloudlinks/0069PwrwS7XozTiDvs3ArRsFg/2/

Learning Goal: I’m working on a mathematics exercise and need guidance to help me learn.
The surface areas of two spheres are 36cm² and 49cm².
If the volume of the smaller sphere is 20.2cm²,
calculate the volume of the larger one.

There is a pie chart monitoring your progress, mine is currenty at 50 %. It increases by doing the exercise given to you. I need it to be at 85% minimum. Click on continue my path to geet the exercises. link : https://www-awy.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-lJjGuFL41LUg6NO6tj9qFltz6nQLOPsPMGhYmIfV93aRXT1H50kOTKySP8W3yeBbnpQVFC72Rj2gN_PLSH_IOr8EpDOb4Bq?1oBw7QYjlbavbSPXtx-YCjsh_7mMmrq#home

Please be sure to follow each instruction that is given. Read the problems thouroghly and do what each thing says for each question. A & B SHOULD NOT BE DISREGARDED 

Number Theory Exercises. You need to show how you arrive to the answer in a college level. Step by step. The exercises ate attached. 

409 Problem 3 and Problem 5a.
Please name your file as your last name + first letter of your first name+_HWK5. If you fail to do it, you will lose 5% of the homework grade for this assignment. For example, my file is zhangy_HWK5
Only turn in excel file. If you need to answer questions, please do that in the excel file too. Please number the problems and part a, b, c, etc clearly. For example, problem 1, will be numbered as 1a), 1b)….etc.

Question 1
Compound Interest and Savings Annuities
Use the information in the chart below on the line that corresponds to your assigned number, to answer the following questions.  Be sure to show all the steps you took to reach your answers.
You open a savings account that pays compound interest.
Find the total amount (a/k/a future value) in the compound interest account after five years, assuming no withdrawals are made.  
How much of this total amount is interest?
Instead of a compound interest savings account, you set up a savings annuity at the same rate as the compound saving account.
How much will be in the account after five years.
How much of this total in the account is interest?
Use the below numbers:
Total Amount Invested in compound interest account: 5400
Annual Interest Rate: 2.2%
# times interest is compounded: monthly 
Amount paid into savings annuity account every month for five years: 90
Question 2 
Mortgage Monthly Payment and Total Interest
Use the information in the chart below on the line that corresponds to your assigned number, to answer the following questions. Be sure to show all the steps you took to reach your answers.
What will your monthly mortgage payment be? Do not round any intermediate computations. Round your final answer to the nearest cents.
Assuming you take the full term of the mortgage,
how much will you have paid?
how much total interest will you have paid? 
what percent of the total that you paid was interest?
Use the below numbers:
Price of house: 430,000
Mortgage Interest Rate: 5.4%
Term of Mortgage in years: 15

Complete the following and submit it in a Word document. Be
sure to show your process and calculations:
1.   
Assume you have just
retired as the CEO of a successful company. A major publisher has offered you a
book deal. The publisher will pay you $1 million upfront if you agree to write
a book about your experiences. You estimate that it will take three years to
write the book. The time you spend writing will cause you to give up speaking
engagements amounting to $500,000 per year. You estimate your opportunity cost
to be 10%.
o  
Should you accept this
deal? Plot a diagram that measures NPV (on the y-axis) vs. discount rate (on
the x-axis) to solve this problem. (Hint: Have your scale on the
x-axis go to 50% (discount rate)).
o  
Determine the IRR for
this deal. (Hint: IRR is the point at which NPV = 0)
2.   
Suppose you inform the
publisher that it needs to sweeten the deal before you will accept it. The
publisher offers $550,000 advance and $1,000,000 in four years when the book is
published.
o  
Should you accept or
reject the new offer? Again, plot a diagram that measures NVP (on the y-axis)
vs. discount rate (on the x-axis) to solve this problem. (Hint: Have
your scale on the x-axis go to 50% (discount rate)).
o  
Determine the IRRs for
this deal (Hint: There are two IRRs for this problem).
o  
Discuss if the IRR rule
for making budgetary decisions can be used in this case.
3.   
Finally, you are able to
get the publisher to increase your advance to $750,000, in addition to the $1
million when the book is published in four years.
o  
Should you accept or
reject this new offer? Again, plot a diagram that measures NVP (on the y-axis)
vs. discount rate (on the x-axis) to solve this problem. (Hint: Have
your scale on the x-axis go to 50% (discount rate)).
o  
Determine the IRR for
this deal.
4.   
State three conclusions
regarding the use of IRR vs. NPV that you can make from questions 2-4. Which is
the stronger method to use (IRR or NPV), and why?

The mean salary is often used to describe the salaries of employees of a company. However, the median salary may be a better measure of the salaries in comparison to the mean. Research a career (Manager at Target in Georgia)you are interested in and calculate the mean and median salaries using at least ten data points (10 states other than Georgia). Include the calculations and the data source(s). Which is the better measure of central tendency? Why? This is a resource to utilize.
https://www.ziprecruiter.com/Salaries/Target-Store-Manager-Salary–in-Georgia