The U.S. Environmental Protection Agency (EPA) monitors levels of pollutants in the air for cities across the country. Ozone pollution levels are measured using a 500-point scale; lower scores indicate little health risk, and higher scores indicate greater health risk. The following data show the peak levels of ozone pollution in four cities (Birmingham Alabama; Memphis, Tennessee; Little Rock, Arkansas; and Jackson, Mississippi) for 10 dates in 2012.

- Run one-way ANOVA

- What is the p value?

- Is the null hypothesis rejected or not rejected?

- Run Tukey test

- List pairs of cities with the significant mean difference in air pollution measure

Birmingham AL	Memphis TN	Little Rock AR	Jackson MS
18	20	18	14
23	31	22	30
19	25	22	21
29	36	28	35
27	31	28	24
26	31	31	25
31	24	19	25
31	31	28	28
33	35	35	34
20	42	42	21