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(Solution) - For the FL Student Survey data file on the text

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For the FL Student Survey data file on the text CD, software reports the results for responses on the number of times a week the subject reads a newspaper:

a. Is it plausible that ? = 7, where ? is the population mean for all Florida students? Explain.
b. Suppose that the sample size had been 240, with  = 4.1 and s = 3.0. Find a 95% confidence interval, and compare it to the one reported. Describe the effect of sample size on the margin of error.
c. Does it seem plausible that the population distribution of this variable is normal? Why?
d. Explain the implications of the term robust regarding the normality assumption made to conduct this analysis.


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This question was answered on: Jul 11, 2017

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