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  • https://stats.libretexts.org/Courses/Rio_Hondo_College/PSY_190%3A_Statistics_for_the_Behavioral_Sciences/07%3A_Sampling_Distributions/7.03%3A_Using_Standard_Error_for_Probability
    We saw in chapter 6 that we can use z-scores to split up a normal distribution and calculate the proportion of the area under the curve in one of the new regions, giving us the probability of rand...We saw in chapter 6 that we can use z-scores to split up a normal distribution and calculate the proportion of the area under the curve in one of the new regions, giving us the probability of randomly selecting a z-score in that range. As the sample size n increased, the standard error decreased, which in turn caused the value of z to increase, which finally caused the p-value (a term for probability we will use a lot in Unit 2) to decrease.

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