Tax Rates Do women feel differently from men when it comes to federal tax rates? One question on the Sullivan Statistics Survey II was, “What percent of income do you believe individuals should pay in federal income tax?” Results of the survey may be found at the book’s website. Select the data file SullivanSurveyII using the file format of your choice for the version of the text you are using. The Tax Rate column contains the response.

(a) Draw side-by-side boxplots of tax rates by gender. Does there appear to be a difference in the tax rates for the genders?

(b) Explain why the methods of this section may be used to test whether the mean tax rates for the two genders differ.

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(c) Test whether the mean tax rate for females differs from that of males at the  level of significance.

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