For the Students data file mentioned in Exercise 1.11, software reports the results for responses on the number of times a week the subject reads a newspaper:

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Variable N Mean Std Dev SE Mean 95.0% CI News 60 4.1 3.0 0.387 (3.32, 4.88)

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(a) Interpret the confidence interval shown.

(b) Does it seem plausible that the population distribution of this variable is normal?Why? Explain the implications of the term robust regarding the normality assumption for this analysis.