Mathematics, 21.04.2020 15:54 lokiliddel
The titanium content in an aircraft-grade alloy is an important determinant of strength. A sample of 20 test coupons reveals the following titanium content (in percent). 8.32 8.05 8.93 8.65 8.25 8.46 8.52 8.35 8.36 8.41 8.42 8.30 8.71 8.75 8.60 8.83 8.50 8.38 8.29 8.46 Use the normal approximation for the sign test to test the claim that the median titanium content is equal to 8.5%. Use α=0.05. Calculate the observed number of plus differences. r+= Enter your answer; r+ Calculate to 2 decimal places the test statistic. z0= Enter your answer; z0 Calculate to 3 decimal places the P-value. P-value = Enter your answer; P-value H0 : μ˜=8.5 versus H1: μ˜≠8.5. Conclusion: Choose your answer; Conclusion
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The titanium content in an aircraft-grade alloy is an important determinant of strength. A sample of...
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