A random sample of 50 observations was made on the diameter of spot welds and the corresponding
Question:
(a) Given that r = 0.62, test the hypothesis that p = 0, using a = 0.01. What is the P-value for this test?
(b) Find a 99% confidence interval for p.
(c) Based on the confidence interval in part (b), can you conclude that p = 0.5 at the 0.01 level of significance?
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n 50 r062 H p 0 a H p 0 xn2 To 062 ...View the full answer
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Related Book For 
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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