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A. A stress analysis was conducted on random samples of epoxy-bonded joints from two species of...

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Basic Math

A. A stress analysis was conducted on random samples ofepoxy-bonded joints from two species of wood. A random sample of120 joints from species A had a mean shear stress of 1250 psi and astandard deviation of 350 psi, and a random sample of 90 jointsfrom species B had a mean shear stress of 1400 psi and a standarddeviation of 250 psi. (i) Conduct a hypothesis test with α = 0.02to determine whether or not there is a difference between the meansheer stress of the two species of wood. Be sure to state yourhypotheses, test statistic, p-value, and conclusions. (ii)Construct a 98% two-sided confidence interval for the difference µA− µB. Compare the CI with the results of the hypothesis test in(i). Are the conclusions consistent

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