Does the confidence interval support the claim that the mean impact strength of gears from supplier 2 is at least 25 foot-poundshigher than that of supplier 1? Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears, measured in foot-pounds, is animportant characteristic. A random sample of 10 gears from supplier 1 results in ₁ = 289.30 and $₁ = 22.5, and another randomsample of 16 gears from the second supplier results in ₂ = 321.80 and $₂ = 21.Use only Table V of Appendix A.(a) Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use a = 0.05, and assumethat both populations are normally distributed but the variances are not equal.Round your answer to 4 decimal places.< P-value <Is there evidence to support the claim?(b) Do the data support the claim that the mean impact strength of gears from supplier 2 is at least 25 foot-pounds higher than that ofsupplier 1? Find bounds on the P-value making the same assumptions as in part (a).Round your answer to 2 decimal places.< P-value <Is there evidence to support the claim?i(c) Construct an appropriate 95% confidence interval on the difference in mean impact strength. Use only Table V of Appendix A.Round your answers to 3 decimal places.< M2-M1 < i

Answered: Two suppliers manufacture a plastic…

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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Please help me with this question.
Refer to Exercise 8.S.6. Analyze these data using a Wilcoxon signed-rank test.
The titanium content of steel is determined in two laboratories by means of atomic absorptionspectrometry. The following data were obtained: Lab 1 0.470 0.484 0.463 0.449 0.482 0.454 0.477 0.409 Lab 2 0.529 0.490 0.489 0.512 0.486 0.502 - - A. Determine the variance of the measurement data obtained in the two laboratories.B. Is there any significant difference between these variances?
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