Confidence Intervals- take-home exam Part I. Sanchez 98-2
... ___T___ The main objective of Statistics is to make inferences about a population based on information contained in a sample. __ T__ An estimator of a parameter is said to be unbiased if the mean of its sampling distribution is equal to the parameter. ___F___ As n increases the standard error of the ...
... ___T___ The main objective of Statistics is to make inferences about a population based on information contained in a sample. __ T__ An estimator of a parameter is said to be unbiased if the mean of its sampling distribution is equal to the parameter. ___F___ As n increases the standard error of the ...
Sampling Distribution of the Mean
... What would be the probability of obtaining a sample mean of 3 from this sampling distribution of the mean with n=3? You should realize that it will be increasingly unlikely to get a mean of 3 with increasing sample size. In this case, the probability of getting a sample mean of 3 would be .04 (1 in ...
... What would be the probability of obtaining a sample mean of 3 from this sampling distribution of the mean with n=3? You should realize that it will be increasingly unlikely to get a mean of 3 with increasing sample size. In this case, the probability of getting a sample mean of 3 would be .04 (1 in ...
6 Sample Size Calculations
... If n is large (as it generally is for phase III clinical trials), this distribution is well approximated by the standard normal distribution. If the decision to reject the null hypothesis is based on the p-value being less that α (.05 or .025 generally), then this is equivalent to rejecting H0 whene ...
... If n is large (as it generally is for phase III clinical trials), this distribution is well approximated by the standard normal distribution. If the decision to reject the null hypothesis is based on the p-value being less that α (.05 or .025 generally), then this is equivalent to rejecting H0 whene ...
