Find sample mean sufficient to conclude the treatment


A random sample is selected from a normal populationwith a mean of 50 and a standard deviation of 12. after a treatment is administered to the individuals in the sample, the sample mean is found to be 55. if the sample consits of 16 scores, is the sample mean sufficient to conclude that the treatment has a significant effect? use a two tailed test with .05

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Basic Statistics: Find sample mean sufficient to conclude the treatment
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