4. Tensile strength tests were carried out on two difference grades of wire rod, resultingin the accompanying data. Tensile strength is normally distributed for both grades ofwire rod. Assume the population standard deviations are unequal. df= 22.51Sample Mean(kg/mm?)GradeSample SizeSample SDAISI 1078AISI 106414123.62.012107.61.3a) Does the data provide compelling evidence for concluding that the true averagestrength of the 1078 grade is different from the 1064 grade? Test the appropriatehypotheses using the p-value approach at the .01 level.b) Describe a Type I Error and Type II error here.

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Description: 4. Tensile strength tests were carried out on two difference grades of wire rod, resultingin the accompanying data. Tensile strength is normally distributed for both grades ofwire rod. Assume the population standard deviations are unequal. df= 22.51

Solution: The data of tensile strength for two different grades of wire rod is given. It is required…

Math

Statistics

4. Tensile strength tests were carried out on two difference grades of wire rod, resulting in the accompanying data. Tensile strength is normally distributed for both grades of wire rod. Assume the population standard deviations are unequal. df= 22.51 Sample Mean (kg/mm²) 123.6 Grade Sample Size Sample SD AISI 1078 AISI 1064 14 2.0 12 107.6 1.3 a) Does the data provide compelling evidence for concluding that the true average strength of the 1078 grade is different from the 1064 grade? Test the appropriate hypotheses using the p-value approach at the .01 level. b) Describe a Type I Error and Type II error here.

4. Tensile strength tests were carried out on two difference grades of wire rod, resulting in the accompanying data. Tensile strength is normally distributed for both grades of wire rod. Assume the population standard deviations are unequal. df= 22.51 Sample Mean (kg/mm²) 123.6 Grade Sample Size Sample SD AISI 1078 AISI 1064 14 2.0 12 107.6 1.3 a) Does the data provide compelling evidence for concluding that the true average strength of the 1078 grade is different from the 1064 grade? Test the appropriate hypotheses using the p-value approach at the .01 level. b) Describe a Type I Error and Type II error here.

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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