8. The following regression equation for quantity supplied was estimated using a sample of fifty observations....
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
8. The following regression equation for quantity supplied was estimated using a sample of fifty observations. Q=2.2+0.104P. (3.4) (0.005) Standard errors are in the brackets. The total sum of squares was 132 and the residual sum of squares was 19.5 i. ii. Establish a 99% confidence interval for slope and intercept coefficient. Test the hypothesis that slope coefficient (B1) = 0 falls within this interval. Can we say the price has no effect on the quantity supplied? Use the test of significant approach at 1% significance level to test the above hypothesis? iii. Calculate and interpret R-square. What other factors could possibly explain variations in the quantity supplied? iv. From (c) can we say the model best fit in the data set? 9. Suppose the Economics department decides to model students' GPA as a linear function of time spent in lectures (T) in hours, such that GPAi=a+Ti+ui. Where, is a disturbance term. The results of the estimated model were as follows, but some of them were lost due to the problem of electricity in the computer room, hence need to be calculated using your simple calculator. GPA 0.5681 + 0.01022T. S.error (0.928) (.......) t-statistic (......) (2.863) R-square = 0.58. N = 55. Required: i. Fill in the missing values. ii. iii. Interpret the results. Test the hypothesis that 1 = 0. Can we conclude that attending lectures significantly improve student GPA? 8. The following regression equation for quantity supplied was estimated using a sample of fifty observations. Q=2.2+0.104P. (3.4) (0.005) Standard errors are in the brackets. The total sum of squares was 132 and the residual sum of squares was 19.5 i. ii. Establish a 99% confidence interval for slope and intercept coefficient. Test the hypothesis that slope coefficient (B1) = 0 falls within this interval. Can we say the price has no effect on the quantity supplied? Use the test of significant approach at 1% significance level to test the above hypothesis? iii. Calculate and interpret R-square. What other factors could possibly explain variations in the quantity supplied? iv. From (c) can we say the model best fit in the data set? 9. Suppose the Economics department decides to model students' GPA as a linear function of time spent in lectures (T) in hours, such that GPAi=a+Ti+ui. Where, is a disturbance term. The results of the estimated model were as follows, but some of them were lost due to the problem of electricity in the computer room, hence need to be calculated using your simple calculator. GPA 0.5681 + 0.01022T. S.error (0.928) (.......) t-statistic (......) (2.863) R-square = 0.58. N = 55. Required: i. Fill in the missing values. ii. iii. Interpret the results. Test the hypothesis that 1 = 0. Can we conclude that attending lectures significantly improve student GPA?
Expert Answer:
Posted Date:
Students also viewed these mathematics questions
-
In this cause-or-effect topical outline, what are the subheadings that will support each main point? Select the four that apply. Topic/main idea/question: How does financial stress affect...
-
C's basis would be $23,000 with the same information regarding the brought over holding period and no taxable gain or loss. X Corporation's basis would be $8,000 for property 2 and $15,000 - the net...
-
The use of regression analysis for demand estimation can be further illustrated by expanding the Electronic Data Processing (EDP), Inc., example described in the chapter. Assume that the link between...
-
A line charge density pL of length L lies parallel to an infinite sheet of surface charge density ps. How much work is required to rotate the line charge so that it is vertical?
-
What would be the likely consequence of diphtheria infection alone without toxemia?
-
A firm has the following balance sheet and income statement (in millions of dollars): The long-term debt is 8 percent coupon debt maturing in five years. The statutory tax rate is 38 percent. Prepare...
-
Superior Corporation sells a single product for \($60\) per unit, of which \($36\) is contribution margin. Fixed costs total \($72,000\) and net income before income tax is \($28,800\). Required...
-
Solve the linear programming model formulated in Problem 19 for the Bradley farm by using the computer. a. The Bradleys have an opportunity to lease some extra land from a neighbor. The neighbor is...
-
.. For the spring system given in Figure: a) Number the elements and nodes. b) Write elemental equations. c) Compute global stiffness matrix. d) Apply boundary conditions and find reduced stiffness...
-
Identify a public company (one who sells stock on one of the exchanges) and share how healthy or unhealthy the company is compared to two of their competitors when relying on borrowed money? What is...
-
Yi is collecting the Old Age Security pension benefit. Annually, Yi receives $5757 a year from OAS. In addition to OAS, Yi's annual income from her pension, CPP, and other sources totals $94250 a...
-
Determine the value or values that are excluded from the following expression. 1) 3 X-8 X 2) f(x): = 5x-9 X-81 3) x-8x+12 X+4 4) x +4
-
If your proposed grade seems too high or too low, your instructor will review the data available (attendance logs, quiz completion, your assignments, etc.) and may adjust your proposed grade up or...
-
Suppose there is a product that needs to be manufactured and distributed to consumers. Let the consumer demand for the product be given by: P = 40 Q. Further, suppose the constant marginal cost of...
-
Explain the difference between glucogenic and ketogenic amino acids
-
1. Linear Regression a) By assuming X = times and Y = be amount of people infected a day with certain decease. Y XY 1 2 3 4. 4. 24 3 4. Total b) By using the table above, find the value of: SXY. Sxx,...
-
Find a least expensive route, in monthly lease charges, between the pairs of computer centers in Exercise 11 using the lease charges given in Figure 2. a) Boston and Los Angeles b) New York and San...
-
Which of the following statements is true about goodwill? a. Current reporting standards require that goodwill be amortized over its economic life. b. Goodwill is written down when the fair value of...
-
For each of the following items, indicate whether the cost should be capitalized or expensed immediately: a. Paid $1,200 for routine maintenance of machinery b. Paid $5,400 to rent equipment for two...
-
Texas Instruments Incorporated and Intel Corporation report the following information ($ millions) 2014 2013. Texas Instruments Intel Corp Sales PPE, net Sales PPE, net $13,045 12,205 $2,840 3,399...
Study smarter with the SolutionInn App