PSYC 204 Lecture 13: PSYC STATS 13
Document Summary
Sampling distribution of mean - central limit theorem confidence intervals for estimating population mean. Statistics based on distributions of possible samples - sampling distribution. Distribution of obtained means x with repeated sampling from same population. Standard deviation of sampling distribution of obtained means x . Every new set of random sample from population has own mean *different from previous sample. *if randomly select 100 students obtain different mean estimate closer to actual population mean so as increase sample size n = get closer to actual parameter of population mean. *when use repeated samples & collect mean estimate of repeated samples from population. Distribution based on all obtained means estimate x from repeated samples. If sample size n large enough mean of sample means x will be. *interested in how different estimate means differ between each other & differ from actual. * sampling of means x s = normal distribution w/ own mean & own standard deviation.
