why is the observed power depend on the sample why does the observed power depend on the test statistic what is the relationship between observed power and p value why is the observed power based on the test statistic which parameter for z test means the test statistic of the z-test? why does the observed power depend on the sample why is the observed power based on p value which is true about the p value of an average sample? what is the relationship between measured average and observed power what makes a distribution observeable why does the statistic z depend on the sample size how does data analysis influence observed power what does a normal distribution depend on why does the observed power depend on the p value of the sample ios - p value of standard z how to find the relationship between the observed power and the average p value of a given data set what is the relationship between observed power and p value why does the cdf of the p value of the standard normal distribution depend on the sample size what is meant by the relation between the observed statistic for a power function on a z-test and the p value on a standard-normal distribution what is the relation between observed power and the p-value?