Two types of plastic are suitable for an electronics component manufacturer to use. The breaking strength of this plastic is important. It is known that o, = 02 = 1.0 psi. From a random sample size n, = 10 and n, = 12, you obtain x, = 162.5 and 8, = 155.0. The company will not adopt plastic 1 unless its mean breaking strength exceeds that of plastic 2 by at least 10 psi. Based on the sample information, should the company use plastic 1? Use a = 0.05. a. Fail to reject the Null Hypothesis. P-value > 0.05 b. Reject the Null Hypothesis. Zo = -5.84 O. Fail to reject the Null Hypothesis. Zo < 1.65 d. None among the choices

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A:

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A: Here is the solution:

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A: