An exploratory analysis of the data indicated that the effect of the factor X4 (deposition time) on Y1 was significant, but its effect on Y2 was not.

An exploratory analysis of the data indicated that the effect of the factor X4 (deposition time) on Y1 was significant, but its effect on Y2 was not. This suggests that we study both Model (Y1 | X4, X8, X4*X8) and Model (Y2 | X4, X8, X4*X8). (a) Rearrange the data for Model (Y1 | X4, X8, X4*X8) in the standard order; use the format. (b) Perform the analysis of variance and test for the existence of main effects and interactions. Use α = 0.05. (c) Consider the Model (Y2 | X4, X8, X4*X8). Rearrange the data for this model in the standard order; use the format. (d) Perform the analysis of variance and test for the existence of main effects and interactions. Use α = 0.05. (e) Combining the results from parts (b) and (d) is it reasonable to conclude that the effect of deposition time on epitaxial thickness is significant and that its effect on Y2 (process variance) is not? Justify your answer.

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A new synthetic feed additive is found in an experiment to accelerate the growth of hogs sufficiently to reduce the “time to market” by 10%. Should it be added to the feed?

Give your assessment of the relative costs of Type I and Type II errors in the following situations where a decision is pending: a. A new synthetic feed additive is….

A company offers a cloud-sharing service aimed at consumers, including a free level of service to all, as well as higher paying levels.

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The “churn” rate in a subscription business is that rate at which subscribers leave in a given time period.

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