It has been reported that on average, college students spent 3 hours per day watching YouTube. A sample of 12 college students have been taken and time in hour (x) they spent watching YouTube have been recorded as follow:4.2a1.83.14.41.32.73.94.30.83.46.1 a) Given that that use the formula to determine the point estimators of population mean and standard deviation. b) Find a 90% and 95% confidence interval for population mean. What can you summarize from the findings when we increase the confidence level from 90% to 95%?

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Answered: It has been reported that on average,…

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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It has been reported that on average, college students spent 3 hours per day watching YouTube. A sample of 12 college students have been taken and time in hour (x) they spent watching YouTube have been recorded as follow:

4.2	a	1.8	3.1	4.4	1.3
2.7	3.9	4.3	0.8	3.4	6.1

a) Given that that use the formula to determine the point estimators of population mean and standard deviation.

b) Find a 90% and 95% confidence interval for population mean. What can you summarize from the findings when we increase the confidence level from 90% to 95%?

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