A researcher wants to determine whether a sample mean of 91 with a standard deviation of 33 from a s
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) tobs, (b) df (c)tcrit and (d) whether the sample is from the original population (a=.05)
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Solution Format: Word Document
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