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Get Full Access to Applied Statistics And Probability For Engineers - 6 Edition - Chapter 14.3 - Problem 1e
Get Full Access to Applied Statistics And Probability For Engineers - 6 Edition - Chapter 14.3 - Problem 1e

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# An article in Industrial Quality Control (1956, pp. 5–8)

ISBN: 9781118539712 55

## Solution for problem 1E Chapter 14.3

Applied Statistics and Probability for Engineers | 6th Edition

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Problem 1E

An article in Industrial Quality Control (1956, pp. 5–8) describes an experiment to investigate the effect of two factors (glass type and phosphor type) on the brightness of a television tube. The response variable measured is the current (in microamps) necessary to obtain a specified brightness level. The data are shown in the following table:

(a) State the hypotheses of interest in this experiment.

(b) Test the hypotheses in part (a) and draw conclusions using the analysis of variance with α = 0.05.

(c) Analyze the residuals from this experiment.

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Week 2: 8/29­9/4 Experimental Psychology Experimental​ ​s. Non­Experimental Research External Validity ● The degree to which research findings can be generalized to other settings and individuals ● Non­experimental studies have higher external validity Case Studies ● Descriptive study of a subject’s experiences, behaviors, and records ● Pros: source of hypotheses and theories, source of therapy techniques, and allows study of rare phenomena ● Cons: limits representativeness of sample, completeness of data, and reliance on retrospective data Retros

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