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Category > Statistics Posted 25 May 2017 My Price 4.00

The breaking strength of a fiber is required to be at least 150 psi

 

2-1 The breaking strength of a fiber is required to be at least 150 psi. Past experience has indicated that the standard deviation of breaking strength is V = 3 psi. A random sample of four specimens is tested. The results are y1=145, y2=153, y3=150 and y4=147. (a) State the hypotheses that you think should be tested in this experiment. (b) Test these hypotheses using D = 0.05. What are your conclusions? (c) Find the P-value for the test in part (b). (d) Construct a 95 percent confidence interval on the mean breaking strength.
 
 

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Alpha Geek
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Status NEW Posted 25 May 2017 11:05 AM My Price 4.00

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file 1495711417-589953_1_H0.docx preview (12 words )
H-----------0: -----------P =----------- 15-----------0 H-----------1: -----------P &-----------amp-----------;gt-----------; 1-----------50 ----------- -----------The----------- an-----------swe-----------r i-----------s ----------- -----------At -----------95%----------- ----------- -----------
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