Child Psych

Category - Research & Stats

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In an experiment designed to enhance IQ with a sample size of 25, where population mean for IQ is 100, what would be considered a statistically insignificant sample mean IQ?

Explanation

Answer: A - A 99 is a statistically insignificant mean, because it is less than one standard error away from the population mean; the standard error of the mean in this study is 3. 110 is the most statistically significant result of these options; it is more than three standard error units away from the mean.

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