Solution-Produce a side-by-side boxplot for the data

Produce a side-by-side boxplot for the data

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Reference no: EM131754017

Question: The following values of a response Y were obtained for three settings of a categorical predictor A

Suppose we assume the normal regression model for these data with one categorical predictor.

(a) Produce a side-by-side boxplot for the data.

(b) Plot the standardized residuals against A (if you are using a computer for your calculations, also produce a normal probability plot of the standardized residuals) Does this give you grounds for concern that the model assumptions are incorrect?

(d) If you have been able to fix any problems encountered with the model, carry out a one-way ANOVA to test for any differences among the conditional means of Y given A(e) If warranted, construct 0.95-confidence intervals for the differences between the means and summarize your findings.

Reference no: EM131754017

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Produce a side-by-side boxplot for the data

Reference no: EM131754017

Reference no: EM131754017

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