Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. The response time in milliseconds was determined for three different types of circuits in an electronic calculator. The results are recorded here. Circuit Туре Response 1 20 23 20 17 24 21 21 33 28 39 2 3 15 16 18 27 18 (a) Using a = 0.05, test the hypothesis that the three circuit types have the same response time. The null hypothesis rejected. (b) Analyze the residuals from this experiment. There is some indication of variability in circuit (c) Find to 2 decimal places a 95% confidence interval on the mean response time for circuit three.

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A:

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A:

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