The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. Test H0 : μ=81 vs Ha : μ>81 when the sample has n=18, x¯=82.7, and s=3.9 with SE=0.9. Find the value of the standardized z-test statistic. Round your answer to two decimal places. z= Enter your answer in accordance to the question statement   the absolute tolerance is +/-0.01

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