3. The following model is estimated: sleep = 3840.83 – 0.163totwrk + 11.71educ + 8.70age + 0.128age? + 87.75male, I (235.11) (0.018) (5.86) (11.21) (0.134) (34.33) n = 706, R = 0.123 The variable sleep is total minutes per week spent sleeping at night, totwrk is total weekly minutes spent working, educ and age are measured in years, and male is a gender dummy. (a) All other factors being equal, is there evidence that men sleep more than

3. The following model is estimated: sleep = 3840.83 – 0.163totwrk + 11.71educ + 8.70age + 0.128age? + 87.75male, I (235.11) (0.018) (5.86) (11.21) (0.134) (34.33) n = 706, R = 0.123 The variable sleep is total minutes per week spent sleeping at night, totwrk is total weekly minutes spent working, educ and age are measured in years, and male is a gender dummy. (a) All other factors being equal, is there evidence that men sleep more than

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

3. The following model is estimated:
sleep = 3840.83 - 0.163totwrk + 11.71educ + 8.70age +0.128age? + 87.75male,
I
(235.11) (0.018)
(5.86)
(11.21)
(0.134)
(34.33)
n = 706,
R = 0.123
The variable sleep is total minutes per week spent sleeping at night, totwrk is
total weekly minutes spent working, educ and age are measured in years, and
male is a gender dummy.
(a) All other factors being equal, is there evidence that men sleep more than
women? Test the null hypothesis that men sleep the same amount of time
as women against the alternative hypothesis that men sleep more than
women at 5% significance level.
(b) Is there a statistically significant tradeoff between working and sleeping?
What is the estimated tradeoff?

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