A Certain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of writing machine ) is at least 10 hours. A random sample of 18 pens is selected,the writing lifetime of each is determined ,and a normal probability plot of the resulting data supports the use of a one-sample t test. A- What hypotheses should be tested if the investigators believe a priori that the design specification has been satisfied? B- What conclusion is appropriate if the hypotheses of part (a) tested t=-2.3 and a=0.05? C- What conclusion is appropriate if the hypotases see of part (a) are tested, t=-1.8 and a=0.01? D- What should be concluded if the hypotheses of part (a) are tested and t =-3.6?

A Certain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of writing machine ) is at least 10 hours. A random sample of 18 pens is selected,the writing lifetime of each is determined ,and a normal probability plot of the resulting data supports the use of a one-sample t test. A- What hypotheses should be tested if the investigators believe a priori that the design specification has been satisfied? B- What conclusion is appropriate if the hypotheses of part (a) tested t=-2.3 and a=0.05? C- What conclusion is appropriate if the hypotases see of part (a) are tested, t=-1.8 and a=0.01? D- What should be concluded if the hypotheses of part (a) are tested and t =-3.6?

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Description: A Certain pen has been designed so that true average writing lifetime under controlled conditions(involving the use of writing machine ) is at least 10 hours. A random sample of 18 pens is selected,thewriting lifetime of each is determined ,and a no

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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