The response time in milliseconds was determined for three different types of circuits that could be used in an automatic valve shutoff mechanism. The results from a completely randomized experiment are shown in the following table: Circuit Type Response Time 1 9 12 10 8 15 2 20 21 23 17 30 3 6 5 8 16 7 a. Test the hypothesis that the three circuit types have the same response time. b. Use Tukey's test to compare pairs of treatment means. C. Test all pairs of means using Fisher LSD Method. d. Compute 95 percent confidence interval estimate of mean difference between circuit type 2 and 3. e. If you are the design engineer and you wished to minimize the response time, which circuit type would you select? Use a=.05 for this