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Red Rocks Park in Morrison, Colorado, is a naturally formed, rock, open-air amphitheater located 6450 ft above sea level. A random sample of events held at this site in summer 2018 was obtained, and the attendance for each was recorded. The summary statistics were sample mean x = 8722, sample standard deviation s = 460.4, and sample size n = 11. Assume the distribution of attendance is normal and use the significance level @ = 0.01. E wo Determine the v alue of the test statistic . n (Use decimal notation. Give your answer to four decimal places.) millan Learn