(See Solution) A researcher wants to determine whether a sample mean of 91 with a standard deviation of 33 from a sample of 25 subjects is significantly
Question: A researcher wants to determine whether a sample mean of 91 with a standard deviation of 33 from a sample of 25 subjects is significantly different from a population mean of 78.2. Determine (a) t obs, (b) df (c)t crit and (d) whether the sample is from the original population (=.05)
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