California State University Northridge Compute the Values Statistics Questions
Description
For the 2014 General Social Survey, a comparison of females and males on the number of hours a day that the subject watched TV gave,
Group n Mean StdDev Std Error Mean
Females 916 2.94 2.60 0.086
Males 753 3.03 2.57 0.094
Questions:
a) Conduct all parts of a significance tst to analyze whether the population means differ for females and males. Interpret the P-value, and report the conclusion for α-level = 0.05.
(b) If you were to construct a 95% confidence interval comparing the means, would it contain 0? Answer based on the result of (a), without finding the interval.
(c) Do you think that the distribution of TV watching is approximately normal?Why or why not? Does this affect the validity of your inferences? Why?
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