A local firm in Quiapo Manila manufactures LED products that have a lifespan that is approximately normally distributed with a std. dev. of 40 hours. If a sample of 30 LED products has an average lifespan of 790 hours, find a 98% confidence interval for the population mean of all LED products produced by this firm. Choose 2 answers in nearest unit (ones) or in whole number. Example, if your answer is 888.83

A local firm in Quiapo Manila manufactures LED products that have a lifespan that is approximately normally distributed with a std. dev. of 40 hours. If a sample of 30 LED products has an average lifespan of 790 hours, find a 98% confidence interval for the population mean of all LED products produced by this firm. Choose 2 answers in nearest unit (ones) or in whole number. Example, if your answer is 888.83

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

A local firm in Quiapo Manila manufactures LED products that have a lifespan that is approximately
normally distributed with a std. dev. of 40 hours. If a sample of 30 LED products has an average lifespan
of 790 hours, find a 98% confidence interval for the population mean of all LED products produced by
this firm.
Choose 2 answers in nearest unit (ones) or in whole number. Example, if your answer is 888.83 SUS
899.56, choose 889 and 900.
771
797
805
807
775
773
763
792
789
791
769
768

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