Parameter estimates:
intercept: 14179.871 3298.484 4.30 0.0003* (estimate Std Error tRatio Prob>t )
InCostAid: 0.7768753 0.254022 3.06 0,0058* (estimate Std Error tRatio Prob>t )
Baruch College has substantially less average debt compared to the other schools with similar in-state costs. Figure 10.13 contains JMP output for the simple linear regression of AveDebt on InCostAid with this case removed.
a) State the least-squares regression line.
b) The University of North Florida is one school in this sample. It has an in-state cost of $11,421 and average debt of $17,617. What is the residual?
c) Construct a 95% confidence interval for the slope. What does this interval tell you about the change in average debt for a $1000 change in the in-state cost?
ans:
a) y = 0.7768753InCostAid+14179.871
b) 0.7768*11421+14179.871 = 23052.5628
residual = 23052.5628 – 17617 = 5435.562801
c) 0.7768753+- t*0.254022 = 0.7768753+- 2.073873*0.254022 =
(0.2500659328, 1.303684667)
Baruch College was removed from this analysis because it was deemed an outlier. Let’s investigate its impact on the fit.
A) Refit the model using the entire sample of 25 schools. Create a table that summarizes the model estimates with and without this case.
B) Describe the impact this observation has on the fit of the linear regression model.
C) If you were writing a report for publication, would you include the fit with or without this case? Explain your answer.
Need answer for A, B, C
In: Statistics and Probability
INSTRUCTIONS: THERE ARE TWO SECTIONS IN THIS PAPER;
SECTIONS A AND B
ANSWER ALL QUESTIONS IN SECTION A AND ONLY ONE IN SECTION B
SECTION A
QUESTION ONE.
In a given economy, the following hold true.
1.There are only two sectors-household and business sectors
operating in the economy.
2. The percentage of every extra income which goes into consumption
is 80%.
Given that an initial amount of 1000 currency units is introduced
as investment in the economy. Draw up a table which tracks
successive expenditure, income consumption and savings in the
economy, up to the sixth round assuming the initial injection kicks
in a multiplier process.
Using your table, calculate the total amount of income and
consumption and deduce the value of the national income multiplier.
QUESTION TWO
Explain the difference between the criteria used to measure
absolute and comparative cost advantages in international trade.
Assuming there are only two countries in the world, Oceania and
Atlantis each having one resource unit which they use to produce
either Cereals or Machine tools and the table below depicts the
production possibilities of each country.
Maize (tons)
Machine Tools (Units)
Oceania
6
2
Atlantis
2
1
Determine which country has i. absolute cost advantage
ii. Comparative cost advantage.
In: Economics
Use the distribution below to test that Plain M&Ms follow the stated distribution. Discuss your choice of ?. Would a different ? have changed your conclusion?
M&M states the following distribution for Plain
M&Ms:
Red = 13%, Orange = 20%, Yellow = 13%, Green = 20%, Blue = 20%,
Brown = 14%
Total number of plain M&M's: 665 Total number of red plain M&M's: 76 Total number of plain brown M&M's: 66 Total number of blue plain M&M's: 179 Total number of orange plain M&M's: 140 Total number of green plain M&M's: 119 Total number of yellow plain M&M's: 85
Total number of peanut M&M's: 356 Total number of red peanut M&M's: 22 Total number of peanut brown M&M's: 34 Total number of blue peanut M&M's: 55 Total number of orange peanut M&M's: 62 Total number of green peanut M&M's: 72 Total number of yellow peanut M&M's: 111
In: Statistics and Probability
Use the distribution below to test that Peanut M&Ms follow the stated distribution. Discuss your choice of ?. Would a different ? have changed your conclusion?
M&M states the following distribution for Peanut M&Ms: Red = 12%, Orange = 23%, Yellow = 15%, Green = 15%, Blue = 23%, Brown = 12%
Total number of plain M&M's: 665 Total number of red plain M&M's: 76 Total number of plain brown M&M's: 66 Total number of blue plain M&M's: 179 Total number of orange plain M&M's: 140 Total number of green plain M&M's: 119 Total number of yellow plain M&M's: 85
Total number of peanut M&M's: 356 Total number of red peanut M&M's: 22 Total number of peanut brown M&M's: 34 Total number of blue peanut M&M's: 55 Total number of orange peanut M&M's: 62 Total number of green peanut M&M's: 72 Total number of yellow peanut M&M's: 111
In: Statistics and Probability
An urn contains 6 red balls and 4 green balls. A sample of 7 balls is selected at random.
a. How many different samples are possible?
b. How many samples contain 5 red and 2 green balls?
c. How many sample contain all red balls?
d. How many samples contain at least 4 red balls?
e. What is the probability in a draw of 7 balls there is 3 red and 4 green?
In: Statistics and Probability
You may believe that each day, married and unmarried women spend the same amount of time per week using Facebook. We would like to test this hypothesis. A random sample of 45 married women who use Facebook spent an average of 3.0 hours per week on this social media website. A random sample of 39 unmarried women who regularly use Facebook spent an average of 3.4 hours per week. Assume that the weekly Facebook time for married women has a population standard deviation of 1.2 hours, and the population standard deviation for unmarried Facebook users is 1.1 hours per week. Using the 0.05 significance level, do married and unmarried women differ in the amount of time per week spent on Facebook? State the decision rule for 0.05 significance level: H0: μ married = μ unmarried H1: μ married ≠ μ unmarried. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Compute the test statistic. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) What is the p-value? (Round your answer to 4 decimal places.) State your decision about the null hypothesis. Fail to reject H0 Reject H0
In: Math
An article in the new york times about former secretary of state Hillary Clintons campaign for president notes that she proposed to "increase taxes on the wealthiest Americans to combat a widening gap between rich and poor people". currently does the effect of federal taxes make the distribution of income more or less equal? Briefly explain. what are the benefits and drawbacks of using the federal income tax code to reduce income inequality?
In: Economics
A, B and C are equal partners in the ABC partnership which has the following balance sheet:
Assets Partners’ Capital
A.B. F.M.V. A.B. F.M.V.
Cash $6,000 $6,000 A $12,000 $18,000
A/R 0 9,000 B 12,000 18,000
Inventory 18,000 18,000 C 12,000 18,000
Land & Building 6,000 12,000
Equipment 6,000 9,000
$36,000 $54,000 $36,000 $54,000
The partnership distributes the $9,000 worth of accounts receivable to A and $18,000 worth of inventory equally ($9,000 each) to B and C.
(a) Is Internal Revenue Code Section 751(b) applicable to this operating distribution?
(b) What does this tell you about Internal Revenue Code Section 751(b)?
(c) Should Internal Revenue Code Section 751(b) be repealed?
In: Accounting
Weekly Assignment images and copyright.
you can search the web for...
(To see how to insert images into your html see the panapto recording "inserting images" or search the internet for inserting html images.) Please note you do not have to insert images in this assignment
In a properly constructed HTML document answer these questions.
In your document head section your title should have your first and last name and "Lecture Assignment 2"
When finished name your html document assignment2Yourlastname.html and submit.
Add a Header section to you the start of your document. In this add the largest heading element with the text
Images and Copyright
Questions 1 and 2 should be inside an article tag with a heading element that says
Image Types
Questions 3,4,5,6 and 7 should be inside an article tag with a heading element that says
Copyright
Questions 8,9 and 10 should be inside an article tag with a heading element that says
Image optimization
Questions start here.....
Add a footer element to the document that contains the copyright symbol The Year and your name
In: Computer Science
Monetary Policy: What works?
Monetary policy by the US Federal Reserve is important for the US economy. However, economists disagree about several aspects of Federal Reserve decision-making powers including the composition of the Federal Reserve committees, Federal Reserve goals, and the actual impact Federal Reserve of policy on the economy.
Please describe in detail
In: Economics