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13.2.1 GO Tutorial Your answer is partially correct. Try again. An article in Environment International (Vol. 18, No. 4, 1992) describes an experiment in which the amount of radon released in showers was investigated. Radon-enriched water was used in the experiment, and six different orifice diameters were tested in shower heads. The data from the experiment are shown in the following table. Orifice Diameter Radon Released (%) 0.37 80 83 83 85 0.51 75 75 79 79 0.71 74 73 76 77 1.02 67 za 72 74 74 1.40 62 62 65 69 1.99 60 61 64 66 (a) Does the size of the orifice affect the mean percentage of radon released? Use a = 0.05. Round all intermediate calculations to four decimal places (e.g. 12.3456). 33.3097 Since Fo in the rejection region, there is sufficient evidence to conclude that the mean percentage varies according to orifice diameter. (b) Find bounds on the P-value for the F-statistic in part (a). Use only Table VI of Appendix A. P-values0 Statistical Tables and Charts the absolute tolerance is +/-0.05 Question Attempts: 1 of 2 used SAVE FOR LATER SUBMIT ANSWER

Answer 1

a) Fo = 32.9222 is in the rejection region, there is sufficient evidence to conclude that the mean percentage varies according to orifice diameter. b) P-value = 0

SS df MS F Fcrit ANOVA Source of Variation Between Groups Within Groups Total P-value 0.0000 1163.708 32.9222 2.7729 5 232.7417 18 7.0694 127.250 1290.958 23