PSYCH 200 Study Guide - Final Guide: Dj Premier, Null Hypothesis, 2Degrees
Document Summary
Final review: central limit theorem: if the sample is from a normally distributed population, the sampling distribution of any statistic from the sample will be normally distributed. *p=0. 05 or 5: type i error: reporting significance, when there actually wasn"t. *also known as: -error: type ii error: reporting no significance, when there actually was. *also known as: -error: statistical power: probability of making type ii error. v. Inflated alpha ( ): used to prevent committing type i error in analysis of. Variance. (anova: one sample z-test, population parameters ii, one sample t-test, population standard deviation is not known, n and x-bar, two sample t-test i. ii. Independent: comparing two independent samples that do not require the same criteria. Pooled variance: used on independent two sample t-test variance, when assuming the variances are homogeneous or equal, to estimate the population variance. iv.
