Answer the following econmics

Markets for Goods end Services Fimys Households G Markets for Factors of D Production Refer to Figure 2-1 Which anow represents the flow of land, labor, and capital? ObD OCB ode Saved QUESTION 13 3.00000 points In the markets for the factors of production in the circula flow diagram O a households and firms are both buyers. b households and firms are both sellers O c households are buyers and firms are sellers, "d households are sellers and firms are buyers.ig services . SQU Libraries . SQU Portal Attendance English (en) . AR ALGEBRA AND MUTIVARIATE CALCULUS FOR ENGINE Given the matrices: swered it of 20.00 A = uestion 3 a. Use the Gauss elimination method to reduce the matrix A to the echelon form. b. Choose the system of equations Ax = 0. Then answer the following questions: 10. The set of vectors: [0 1 -3 -1], [1 0 1 1] is linearly independent. Choose.. Answer: yes or no 20. det(A ') is non zero. Answer yes or no Choose.. 18. The system Ax = 0 has a non-trivial solution. Answer yes or no Choose. 14. The set of vectors: [1 0 1 1], [1 1 -2, 0] is linearly dependent. Answer: Choose. yes or no 13. The set of vectors: [1 0 1 1], [3 10 2] is linearly independent. Answer: Choose. yes or no 12. The set of vectors: [0 1 -3 -1], [1 1 -2, 0] is linearly independent. Choose. Answer: yes or no 2. Choose the rank of the matrix A Choose. 11. The set of vectors: [0 1 -3 -1], [3 1 0 2] is linearly dependent. Choose. Answer: yes or no3. Consider the simple linear model Y = oo + 8(x; - >) + where & ~ N(0, o?). (a) Show that [Y -00 - B(x; - x)] = n(60-00)+(8-B)? (x-2)'+)[Y-60-B(x1-2)12 i=1 i=1 i=1 (b) For an appropriate value of c (which one?), show that the endpoints for a 100.(1-7)% confidence interval for on are: Got c- Vn (c) Letting F-1be the inverse cdf of x?_2, show that a 100. (1-)% confidence interval for of is: (n - 2)62 (n - 2)62 F-1(1-7/2)' F-1(y/2)A sample of size n is taken from a population with an unknown distribution, with mean // and standard deviation O. Which of the following statements about the sample mean distribution is true? Select one: a. without Using the Central Limit Theorem, X approximately followsX - N H,- 02 n b. Using the Central Limit Theorem, Xexactly followsX - NCH, 02 n C. without Using the Central Limit Theorem, Xexactly followsX - Nu,- 02 n d. Using the Central Limit Theorem, X approximately followsX - Nu,- n