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 avera ge 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 ind icate 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
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Chapter1: Starting With Matlab
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Answer 4-6 with correct answer thanks
4. Given that the level of significance is 0.05 or 5%, what is/are the
critical values? *
+2.145
+2.624
O +2.602
+2.131
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) *.
Your answer
6. What is the decision based from the critical value and the computed
test statistic? *
Fail to reject Ho
Reject Ho
Accept Ha
Reject Ha
Transcribed Image Text:4. Given that the level of significance is 0.05 or 5%, what is/are the critical values? * +2.145 +2.624 O +2.602 +2.131 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) *. Your answer 6. What is the decision based from the critical value and the computed test statistic? * Fail to reject Ho Reject Ho Accept Ha Reject Ha
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.
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.
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