By: David Bejuashvili
Int. Money & Banking
Are Speculative Bubbles Good?
As we know a speculative bubble is usually caused by exaggerated expectations
of future growth, price appreciation, or other events that could cause an increase in
asset values. In t
CHAPTER 8
THE COMPARISON OF TWO POPULATIONS
8-40.
2
s1 = 1,288
n1 = 40
Old method (1):
n 2 = 15 s 2 2 = 1,112
H1: 12 > 22
use = .05
2
2
F (39,14) = s 1 /s 2 = 1,288/1,112 = 1.158
The critical point at = .05 is F (39,14) = 2.27 (using approximate df in the
CHAPTER 7
HYPOTHESIS TESTING
7-2.
H0: 200
H1: > 200
7-4.
H0: $49,160
H1: < $49,160
7-6.
The power of a test is the probability that a false null hypothesis will be detected by the test. It
is important if the ramifications of accepting a false null hypoth
CHAPTER 9
ANALYSIS OF VARIANCE
9-18.
(From Minitab):
Source
df
SS
MS
F
Treatment
2
381127
190563
20.71
Error
27
248460
9202
Total
29
629587
The critical point for F (2,27) at = 0.01 is 5.49. Therefore, reject H0. The average range of the 3
prototype plane
CHAPTER 11
MULTIPLE REGRESSION
11-38.
a) Y = 85.5139 + 0.52257 Car Sales 33.274 MS Index + 0.2489 Oil Price
R 2 = 0.8607 Adjusted R 2 = 0.8189
Multiple Regression Results
Sales
0
Intercept
b 85.5139
s(b) 13.6919
t 6.24558
p-value 0.0001
VIF
1
Car
0.52257