query: T-test formula when population standard deviation is known
positive_passages.docid: 152404
positive_passages.text: Why does t statistic increase with the sample size?
negative_passages.docid: 154178
negative_passages.text: Performing a chi-square goodness of fit test
negative_passages.docid: 936
negative_passages.text: Given a 95% confidence level, how do I demonstrate 95% of the intervals actually contain the population mean?
negative_passages.docid: 96497
negative_passages.text: Population Variance and Sample Variance
negative_passages.docid: 27706
negative_passages.text: Explaining two-tailed tests
negative_passages.docid: 11124
negative_passages.text: Normality of residuals vs sample data; what about t-tests?
negative_passages.docid: 1637
negative_passages.text: R : use of t.test function in data frame or matrix
negative_passages.docid: 106646
negative_passages.text: Prove F test is equal to T test squared
negative_passages.docid: 147303
negative_passages.text: t-test on highly skewed data
negative_passages.docid: 158584
negative_passages.text: How to calculate the standard error of a proportion using weighted data?
negative_passages.docid: 62738
negative_passages.text: How to perform two-sample t-tests in R by inputting sample statistics rather than the raw data?
negative_passages.docid: 30596
negative_passages.text: Test whether the study population come from a normal or log-normal distribution based on mean, median, and number of subjects
negative_passages.docid: 32215
negative_passages.text: Why is the t-test designed for small samples?
negative_passages.docid: 38579
negative_passages.text: Relation between confidence interval and testing statistical hypothesis for t-test
negative_passages.docid: 36606
negative_passages.text: Why the standard deviation of the sample mean is calculated as $\frac{\sigma}{\sqrt{n}}$?
negative_passages.docid: 74477
negative_passages.text: T-test for non normal when N>50?
negative_passages.docid: 144029
negative_passages.text: one sample t-tests applied to each row - 'data are essentially constant' error