A researcher makes a research about the life time of batteries which have a normal distribution with mean of 50 hours and variance of 9 hours. In order to understand the life time of batteries s/he randomly selected 9 batteries and calculate the sample mean as 48 hours and standard deviation of 5 hours. Construct 90 % confidence interval for the true population mean of life time of batteries. There is no correct answer (46.61, 49.39) O (46.36, 49.65) O (47.09, 48.91) O (46.04, 49.96)

A researcher makes a research about the life time of batteries which have a normal distribution with mean of 50 hours and variance of 9 hours. In order to understand the life time of batteries s/he randomly selected 9 batteries and calculate the sample mean as 48 hours and standard deviation of 5 hours. Construct 90 % confidence interval for the true population mean of life time of batteries. There is no correct answer (46.61, 49.39) O (46.36, 49.65) O (47.09, 48.91) O (46.04, 49.96)

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Description: 1- A researcher makes a research about the life time of batteries which have a normal distribution with mean of 50hours and variance of 9 hours. In order to understand the life time of batteries s/he randomly selected 9 batteriesand calculate the sa

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 researcher makes a research about the life time of batteries which have a normal distribution with mean of 50 hours and variance of 9 hours. In order to understand the life time of batteries s/he randomly selected 9 batteries and calculate the sample mean as 48 hours and standard deviation of 5 hours. Construct 80 % confidence interval for the true population mean of life time of batteries. 1- a) (45.43, 50.57) b) (46.04, 49.96) c)O There is no correct answer d) (46.72, 49.28) e) (46.36, 49.65) Boş bırak