1) Sampling Distribution for Sample Variancesa) A cell phone manufacturer wants to advertise their new extended-life batteries. They believethe lifetimes are normally distributed with o = 1.15 hr. A test engineer takes a sample of 10batteries and calculates a sample standard deviation of 1.3 hr. Can the manufacturerconfidently advertise the standard deviation in the lifetime of their new batteries? Usecritical values of X1.95 and X3.05 (a 90% window).i)Find the value of the test statistic for this sample and the two critical values.ii)2X0.95 =YESx² =Can the manufacturer confidently advertise the standard deviation in the lifetime oftheir new batteries? Circle YES or NO and briefly explain your answer.NOX0.05 =

n=10 sample sizeσ=1.15 Popuation standard deviation s=1.3 Sample standard deviation C=0.90…

Answered: 1) Sampling Distribution for Sample…

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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H0 : =150.00 kPa H1 :>150.00 kPa b) α= 0.01; sample variance : 1300 freq. table sample deviation : 36.0555 freq. table
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pounds, with a standard deviation of 15.81 pounds. At the 0.05 level of significance, test the claim that the weights of football players have a greater variance than the weights of baseball deviation of 40.09 pounds. A random sample of 25 baseball players had a mean weight of 202.9 6. A random sample of 48 football players had a mean weight of 246.6 pounds, with a standard ith a players. ie th sufficient evidence to conclude that Step 5: There
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