Question: A sample of size 16 was selected from a normal population and used to test the null hypothesis that the population mean was equal to

A sample of size 16 was selected from a normal population and used to test the null hypothesis that the population mean was equal to 50 vs. the alternative hypothesis that the population mean was less than 50. The sample produced a mean of 48with a standard deviation of 8. The test statistic is __________ .

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