Question

When the GSS asked in 2004, “About how many hours per week do you spend sending and answering e-mail?” the eight males in the sample of age at least 75 responded:
0, 1, 2, 2, 7, 10, 14, 15.
a. The TI – 83 + /84 screen shot shows results of a statistical analysis for finding a 90% confidence interval. Identify the results shown and explain how to interpret them.
b. Find and interpret a 90% confidence interval for the population mean.
c. Explain why the population distribution may be skewed right. If this is the case, is the interval you obtained in part b useless, or is it still valid? Explain.


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  • CreatedSeptember 11, 2015
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