EBK ECONOMICS
20th Edition
ISBN: 9780077660710
Author: McConnell
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 29, Problem 2P
To determine
Savings and Investment.
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Suppose that (Y, X) satisfy the assumptions specified here. A random sample of n = 498 is drawn and yields
Ŷ= 6.47 + 5.66X, R2 = 0.83, SER = 5.3
(3.7)
(3.4)
Where the numbers in parentheses are the standard errors of the estimated coefficients B₁ = 6.47 and B₁ = 5.66 respectively.
Suppose you wanted to test that B₁ is zero at the 5% level. That is,
Ho: B₁ = 0 vs. H₁: B₁ #0
Report the t-statistic and p-value for this test.
Definition
The t-statistic is
(Round your response to two decimal places)
☑
The Least Squares Assumptions
Y=Bo+B₁X+u, i = 1,..., n, where
1. The error term u; has conditional mean zero given X;: E (u;|X;) = 0;
2. (Y;, X¡), i = 1,..., n, are independent and identically distributed (i.i.d.) draws from
i
their joint distribution; and
3. Large outliers are unlikely: X; and Y, have nonzero finite fourth moments.
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Tasks
Exercise 1
Assess the following functions:
1. f(x)= x2+6x+2
2.f '(x)=10x-2x2+5
a. Find the stationary points. (5 marks)
b. Determine whether the stationary point is a maximum or minimum. (5 marks)
c. Draw the corresponding curves (5 marks)
Chapter 29 Solutions
EBK ECONOMICS
Ch. 29.2 - Prob. 1QQCh. 29.2 - Prob. 2QQCh. 29.2 - Prob. 3QQCh. 29.2 - Prob. 4QQCh. 29.7 - Prob. 1QQCh. 29.7 - Prob. 2QQCh. 29.7 - Prob. 3QQCh. 29.7 - Prob. 4QQCh. 29 - Prob. 1DQCh. 29 - Prob. 2DQ
Ch. 29 - Prob. 3DQCh. 29 - Prob. 4DQCh. 29 - Prob. 5DQCh. 29 - Prob. 6DQCh. 29 - Prob. 7DQCh. 29 - Prob. 8DQCh. 29 - Prob. 1RQCh. 29 - Prob. 2RQCh. 29 - Prob. 3RQCh. 29 - Prob. 4RQCh. 29 - Prob. 5RQCh. 29 - Prob. 6RQCh. 29 - Prob. 7RQCh. 29 - Prob. 8RQCh. 29 - Prob. 9RQCh. 29 - Prob. 1PCh. 29 - Prob. 2PCh. 29 - Prob. 3PCh. 29 - Prob. 4PCh. 29 - Prob. 5PCh. 29 - Prob. 6PCh. 29 - Prob. 7PCh. 29 - Prob. 8PCh. 29 - Prob. 9PCh. 29 - Prob. 10P
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