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Which is the null hypothesis?

Which is the null hypothesis?

MATLAB: An Introduction with Applications
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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Mika studies if age correlates with the average number of hours of sleep, so she selected a random sample size of 6 and surveyed the needed data. The gathered data are given below. Is there a significant relationship between a person's age and the number of hours he or she sleeps? Age(x) 8 15 22 27 34 40 Sleep (y) 8 8 7 7 5 6 Which is the null hypothesis? O a. There is a significant difference between a person's age and the number of hours he or she sleeps. O b. There is no significant difference between a person's age and the number of hours he or she sleeps. There is no significant relationship between a person's age and the number of hours he or she sleeps. O d. There is a significant relationship between a person's age and the number of hours he or she sleeps.
Transcribed Image Text:Mika studies if age correlates with the average number of hours of sleep, so she selected a random sample size of 6 and surveyed the needed data. The gathered data are given below. Is there a significant relationship between a person's age and the number of hours he or she sleeps? Age(x) 8 15 22 27 34 40 Sleep (y) 8 8 7 7 5 6 Which is the null hypothesis? O a. There is a significant difference between a person's age and the number of hours he or she sleeps. O b. There is no significant difference between a person's age and the number of hours he or she sleeps. There is no significant relationship between a person's age and the number of hours he or she sleeps. O d. There is a significant relationship between a person's age and the number of hours he or she sleeps.
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1.Which is the alternative hypothesis?

a. There is a significant difference between a person's age and the number of hours he or she sleeps.
b. There is no significant relationship between a person's age and the number of hours he or she sleeps.
c. There is a significant relationship between a person's age and the number of hours he or she sleeps.
d. There is no significant difference between a person's age and the number of hours he or she sleeps.
 
2. What is the df?
 
3. What is the critical value from the table?
 
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