summary statistics
... Random variable. Individual averages taken from the population are conceptualized as random, and we would describe this as the X-population, exactly as in the point above. In the cat example, we would use X1, X2, …, X43 to represent the random phenomenon of catching 43 cats and weighing them to prod ...
... Random variable. Individual averages taken from the population are conceptualized as random, and we would describe this as the X-population, exactly as in the point above. In the cat example, we would use X1, X2, …, X43 to represent the random phenomenon of catching 43 cats and weighing them to prod ...
CHAPTER 8 Estimation from Sample Data
... where n = required sample size N = population size z = z-score for (1–a)% confidence p = sample estimator of p ...
... where n = required sample size N = population size z = z-score for (1–a)% confidence p = sample estimator of p ...
slides - Courses
... Type II Errors • Assume there are differences (alternative hypothesis is true) • Assume that we conclude they are the same (we accept null hypothesis) • This is also an error – Probability denoted beta () • We can’t set beta easily. • We’ll talk about this issue later. ...
... Type II Errors • Assume there are differences (alternative hypothesis is true) • Assume that we conclude they are the same (we accept null hypothesis) • This is also an error – Probability denoted beta () • We can’t set beta easily. • We’ll talk about this issue later. ...
