From the long time ex_perience, it is kn=own that the str_ength of a specific wire made by an existi_ng pro_cess has a m_ean of 1260 and a sta_ndard deviation of 200. A batch of wire is made by a new process, and a rand_om sample consisting of 36 measurements gives an average strength of 1302. Assume that the standard deviation does not change. At the 5% level of significance, use the hyp_othesis testing to te_st if we shou_ld believe th_at the new pr_ocess gives a lar=ger mean stre_ngth than tha=t of the old pr=ocess. (Please write it on paper)
From the long time ex_perience, it is kn=own that the str_ength of a specific wire made by an existi_ng pro_cess has a m_ean of 1260 and a sta_ndard deviation of 200. A batch of wire is made by a new process, and a rand_om sample consisting of 36 measurements gives an average strength of 1302. Assume that the standard deviation does not change. At the 5% level of significance, use the hyp_othesis testing to te_st if we shou_ld believe th_at the new pr_ocess gives a lar=ger mean stre_ngth than tha=t of the old pr=ocess. (Please write it on paper)
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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From the long time ex_perience, it is kn=own that the str_ength of a specific wire made by
an existi_ng pro_cess has a m_ean of 1260 and a sta_ndard deviation of 200. A batch of wire is made
by a new process, and a rand_om sample consisting of 36 measurements gives an average strength
of 1302. Assume that the standard deviation does not change. At the 5% level of significance, use
the hyp_othesis testing to te_st if we shou_ld believe th_at the new pr_ocess gives a lar=ger mean stre_ngth
than tha=t of the old pr=ocess. (Please write it on paper)
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