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Statistics for the Behavioral Sciences - NYU Open Edu 9 Online
OpenStudy (anonymous):

Hi I need help understanding how to do my problems..if I can understand one I can get the rest. Consider the following hypothesis test: Ho: U > 20 Ha: U < 20 A sample of 50 provided a sample mean of 19.4 - population standard dev. is 2. Compute the value of the test statistic. What is the p-value and using alpha .05 what is my conclusion?

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