QUESTION 32 Consider the following dataset: х1 x2 34 1 55 3 5 33 4 5 72 It is possible to regress x1 on y. a. True b. False 2.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
A4,,,
QUESTION 32
Consider the following dataset:
х1
x2
34
1
55
33
3
5
72
4
5
It is possible to regress x1 on y.
a. True
b. False
QUESTION 33
Under assumptions MLR1-6, all our included variables are (approximately) normally distributed.
a. True
b. False
QUESTION 34
Omitting a variable from our model that has a causal effect on our dependent variable always leads to omitted
variable bias.
a. False
b. True
QUESTION 35
In a panel dataset we observe the same individual multiple times.
True
O False
Transcribed Image Text:QUESTION 32 Consider the following dataset: х1 x2 34 1 55 33 3 5 72 4 5 It is possible to regress x1 on y. a. True b. False QUESTION 33 Under assumptions MLR1-6, all our included variables are (approximately) normally distributed. a. True b. False QUESTION 34 Omitting a variable from our model that has a causal effect on our dependent variable always leads to omitted variable bias. a. False b. True QUESTION 35 In a panel dataset we observe the same individual multiple times. True O False
QUESTION 44
Consider the following regression estimates (FN7)
Source
SS
df
MS
Number of obs
526
F(3, 522)
74.67
Model
44.5393713
14.8464571
Prob > F
0.0000
%3D
Residual
R-squared
Adj R-squared
103.79038
522
.198832146
0.3003
0.2963
Total
148.329751
525
.28253286
Root MSE
.44591
lwage
Coef.
Std. Err.
P>|t|
[95% Conf. Interval]
educ
.0903658
.007468
12.10
0.000
.0756948
.1050368
exper
.0410089
.0051965
7.89
0.000
.0308002
.0512175
exper2
-.0007136
0001158
-6.16
0.000
-.000941
-.0004861
_cons
.1279975
.1059323
1.21
0.227
-.0801085
3361035
where Iwage is the natural logarithm of hourly wage in US$, educ is years of education, exper is years of work
experience and exper2 is experience squared (exper * exper).
What is the exact effect in percent of a 15 years increase in education on predicted wage?
State your answer in percentages. For example, if you think the answer is 10% write 10 instead of 0.1. Do not use the %
symbol.
QUESTION 45
Consider the following scenario:
• The significance level is 5%
• Of all tested hypotheses, 10% are true
• The statistical power is 60%
What is the probability of the finding being true, given that the estimate is statistically significant?
(State your answer as percentage without the percent symbol. For example, if you think the correct answer is 10%, just
state 10)
Transcribed Image Text:QUESTION 44 Consider the following regression estimates (FN7) Source SS df MS Number of obs 526 F(3, 522) 74.67 Model 44.5393713 14.8464571 Prob > F 0.0000 %3D Residual R-squared Adj R-squared 103.79038 522 .198832146 0.3003 0.2963 Total 148.329751 525 .28253286 Root MSE .44591 lwage Coef. Std. Err. P>|t| [95% Conf. Interval] educ .0903658 .007468 12.10 0.000 .0756948 .1050368 exper .0410089 .0051965 7.89 0.000 .0308002 .0512175 exper2 -.0007136 0001158 -6.16 0.000 -.000941 -.0004861 _cons .1279975 .1059323 1.21 0.227 -.0801085 3361035 where Iwage is the natural logarithm of hourly wage in US$, educ is years of education, exper is years of work experience and exper2 is experience squared (exper * exper). What is the exact effect in percent of a 15 years increase in education on predicted wage? State your answer in percentages. For example, if you think the answer is 10% write 10 instead of 0.1. Do not use the % symbol. QUESTION 45 Consider the following scenario: • The significance level is 5% • Of all tested hypotheses, 10% are true • The statistical power is 60% What is the probability of the finding being true, given that the estimate is statistically significant? (State your answer as percentage without the percent symbol. For example, if you think the correct answer is 10%, just state 10)
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman