Three Cities Random samples of gasoline prices were obtained in three cities and are shown in the table.
a. Assuming the overall level of significance is 0.05, what is the Bonferroni-corrected level of significance for three groups?
b. Report all three sample means. Also state which two means are closest to each other.
c. Carry out two-sample t-tests for all three pairs, and instead of using the four-step method, summarize your findings in a table that reports the t-values, p-values, and conclusions. Base your conclusion on the Bonferroni-corrected level of significance. Do not assume equal variances.

  • CreatedJuly 16, 2015
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