A campus located in Jakarta wanted to find out if students' independent study hours during the pandemic had increased. It is known that before the pandemic, the average student study hours were 15 hours/week with a standard deviation of 3 hours/week.To answer the questions above, the campus conducted a survey of 150 students. The survey results show that on average, students study independently for 18 hours/week with a standard deviation of 2 hours/week.Based on the information above, determine:Null and alternative hypotheses to test the statement that there is an increase in learning hours during a pandemicBased on the results of the survey, with a 95% confidence level, what conclusions can you convey to the campus leadership?If the standard deviation of study time before the pandemic is unknown, with a 95% confidence level, what conclusions can you convey to the campus leadership?Based on your answer to no. 2 above, if you want to get 90% confidence, based on the survey results, what conclusions would you convey to the campus leadership?Note: For questions number 2-4, show your calculations for test statistics and your determination to reject/not reject the Null Hypothesis.

Answered: A campus located in Jakarta wanted to…

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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A campus located in Jakarta wanted to find out if students' independent study hours during the pandemic had increased. It is known that before the pandemic, the average student study hours were 15 hours/week with a standard deviation of 3 hours/week.

To answer the questions above, the campus conducted a survey of 150 students. The survey results show that on average, students study independently for 18 hours/week with a standard deviation of 2 hours/week.

Based on the information above, determine:

Null and alternative hypotheses to test the statement that there is an increase in learning hours during a pandemic
Based on the results of the survey, with a 95% confidence level, what conclusions can you convey to the campus leadership?
If the standard deviation of study time before the pandemic is unknown, with a 95% confidence level, what conclusions can you convey to the campus leadership?
Based on your answer to no. 2 above, if you want to get 90% confidence, based on the survey results, what conclusions would you convey to the campus leadership?

Note: For questions number 2-4, show your calculations for test statistics and your determination to reject/not reject the Null Hypothesis.

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