A study was conducted by Grade 11 STEM students to investigate the health hazards of working long hours in front of a computer or word processor video displays. It found out that it took an average of 2.6 hours before a certain symptom of eye strain developed. If a similarexperiment done by Grade 12 STEM students using a sample of 15 people had a mean of 2.8 hours, with standard deviation of 1.25 hours, would this indicate that the G11 STEM students results are different with the G12 STEM students results? Use 5% level of significance.
A study was conducted by Grade 11 STEM students to investigate the health hazards of working long hours in front of a computer or word processor video displays. It found out that it took an average of 2.6 hours before a certain symptom of eye strain developed. If a similarexperiment done by Grade 12 STEM students using a sample of 15 people had a mean of 2.8 hours, with standard deviation of 1.25 hours, would this indicate that the G11 STEM students results are different with the G12 STEM students results? Use 5% level of significance.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![A study was conducted by Grade 11 STEM students to investigate the health hazards of working long
hours in front of a computer or word processor video d isplays. It found out that it took an average of 2.6
hours before a certain symptom of eye strain developed. If a similarexperiment done by Grade 12 STEM
students using a sample of 15 people had a mean of 2.8 hours, with standard deviation of 1.25 hours,
would this indicate that the G11 STEM students results are different with the G12 STEM students results?
Use 5% level of significance.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F816c7d8f-a934-4292-9851-9ef73d34e210%2F8ad225c7-23ff-4745-9af9-4a5547b5168f%2Fsuo0th_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A study was conducted by Grade 11 STEM students to investigate the health hazards of working long
hours in front of a computer or word processor video d isplays. It found out that it took an average of 2.6
hours before a certain symptom of eye strain developed. If a similarexperiment done by Grade 12 STEM
students using a sample of 15 people had a mean of 2.8 hours, with standard deviation of 1.25 hours,
would this indicate that the G11 STEM students results are different with the G12 STEM students results?
Use 5% level of significance.
![5. Using the appropriate formula, what is the computed test statistic?
(Input your answer using 3 decimal places, example: 1.234 if positive or
-1.234 if the answer is negative) *
0.619
6. What is the decision based from the critical value and the computed
test statistic? *
Fail to reject Ho
Reject Ho
Accept Ha
O Reect Ha
7. What is the conclusion? *
Therefore, it will take an average of 2.6 hours before a certain symptom of eye strain
developed on people.
Therefore, it will not take an average of 2.6 hours before a certain symptom of eye
strain developed on people.
Therefore, it will take an average of greater than 2.6 hours before a certain symptom
of eye strain developed on people.
Therefore, it will take an average of less than 2.6 hours before a certain symptom of
eye strain developed on people.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F816c7d8f-a934-4292-9851-9ef73d34e210%2F8ad225c7-23ff-4745-9af9-4a5547b5168f%2Fx8lag0q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. Using the appropriate formula, what is the computed test statistic?
(Input your answer using 3 decimal places, example: 1.234 if positive or
-1.234 if the answer is negative) *
0.619
6. What is the decision based from the critical value and the computed
test statistic? *
Fail to reject Ho
Reject Ho
Accept Ha
O Reect Ha
7. What is the conclusion? *
Therefore, it will take an average of 2.6 hours before a certain symptom of eye strain
developed on people.
Therefore, it will not take an average of 2.6 hours before a certain symptom of eye
strain developed on people.
Therefore, it will take an average of greater than 2.6 hours before a certain symptom
of eye strain developed on people.
Therefore, it will take an average of less than 2.6 hours before a certain symptom of
eye strain developed on people.
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