average of typical sleep time on a school night is 6.8 hours with a standard deviation of 1.2 hours. (Source: Data are downloaded from U.S. Census at School a) We want to test if the mean sleep time on a school night for all high school seniors in the United States is less than 7 hours. State the hypotheses of a one-sided significance test.
average of typical sleep time on a school night is 6.8 hours with a standard deviation of 1.2 hours. (Source: Data are downloaded from U.S. Census at School a) We want to test if the mean sleep time on a school night for all high school seniors in the United States is less than 7 hours. State the hypotheses of a one-sided significance test.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![For a random sample of 47
high school seniors in the
United States in 2019, the
average of typical sleep time
on a school night is 6.8 hours
with a standard deviation of
1.2 hours. (Source: Data are
downloaded from U.S. Census
at School
a)
We want to test if
the mean sleep time on a
school night for all high school
seniors in the United States is
less than 7 hours. State the
hypotheses of a one-sided
significance test.
b)
) Calculate the test
statistic.
I Show how to make a
c)
conclusion for this test, using
the significance level 0.05.
d)
) If your conclusion in
part c) were in error, what type
of error would it be?
e)
) Construct a 95%
confidence interval for the
population mean sleep time on
a school night for all high
school seniors in the United
States.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1212e7be-b978-4b93-a5f2-f8e28ec5a552%2Fc57f4e36-bd1a-4587-8b54-9f2404a5782a%2Fe37x2c3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For a random sample of 47
high school seniors in the
United States in 2019, the
average of typical sleep time
on a school night is 6.8 hours
with a standard deviation of
1.2 hours. (Source: Data are
downloaded from U.S. Census
at School
a)
We want to test if
the mean sleep time on a
school night for all high school
seniors in the United States is
less than 7 hours. State the
hypotheses of a one-sided
significance test.
b)
) Calculate the test
statistic.
I Show how to make a
c)
conclusion for this test, using
the significance level 0.05.
d)
) If your conclusion in
part c) were in error, what type
of error would it be?
e)
) Construct a 95%
confidence interval for the
population mean sleep time on
a school night for all high
school seniors in the United
States.
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