Answer Happy

Choose ALL correct statements from the list below, A contidence interval for a population variance is calculated using critical values obtained from the standard normal distribution A 95% confidence interval means that if one repeatedly performs the experiment: 95% of samples give a confidence interval which contains a true, population parameter A confidence interval for a population mean when the population variances known is calculated using critical values obtained from distribution The sample mean may not be in the confidence interval for a population mean The critical values used for the 95% confidence interval for a population mean when the population variance is unknown) are always larger than to Critical values for the 90% confidence interval for a population mean when the population variance is unknown o