Some people believe that unequal Medicare spending across the country is due to waste and unnecessary tests. However, recent research suggests that health care costs do indeed differ by region.12...

Some people believe that unequal Medicare spending across the country is due to waste and unnecessary tests. However, recent research suggests that health care costs do indeed differ by region.12 Independent random samples of adults in three states were obtained, and the Medicare payments to each were recorded. The resulting  ANOVA test was significant at the p = 0.0190 level. The summary statistics are given below. If MSE = 136,146, construct the Bonferroni 95% confidence intervals to isolate the population mean payments that are significantly different.

A study was conducted to compare the population mean age of women at the time of their first marriage. Independent random samples of size 11 were obtained from weddings in three different years. The resulting ANOVA test was significant at the p = 0.003 level. The sample means are given below. If MSE = 17.68, construct the Tukey 95% confidence intervals to isolate the population mean ages that are significantly different.