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In: Statistics and Probability

An engineer wants to know if producing metal bars using a new experimental treatment rather than...

An engineer wants to know if producing metal bars using a new experimental treatment rather than the conventional treatment makes a difference in the tensile strength of the bars​ (the ability to resist tearing when pulled​ lengthwise). At

alphaαequals=0.05

answer parts​ (a) through​ (e). Assume the population variances are equal and the samples are random. If​ convenient, use technology to solve the problem.

Experimental Treatment   Conventional Treatment
369 360
445 375
359 435
416 423
425 388
441 395
391 412
360
360
359

Find the standardized test statistic.

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Expert Solution

orchestra answered 1 year ago
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