Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.) t = 84.93 P-value = 0.000

Extracted text: Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.) t = 84.93 P-value = 0.000


Extracted text: A simulated exercise gaven = 28 observations on escape time (sec) for oil workers, from which the sample mean and sample standard deviation are 372.76 and 22.85, respectively. Suppose the investigators had believed a priori that true average escape time would be at most 6 min. Does the data contradict this prior belief? Assuming normality, test the appropriate hypotheses using a significance level of 0.05.