But as I said before when calculating t-score we don't know true population parameters, in this case true population mean μ. So what number I should use in μ and how to calculate it? Also to make it clear, …

How can I compute this critical value $t_ {\alpha/2,n-p}$ using R? Right now the only way I know how to find these values is by looking in the table in the back of the book.

You shouldn't necessarily expect great accuracy out where the numbers won't mean anything anyway. To what extent does it matter if the calculated approximate p-value is $2\times 10^ {-12}$ or $3\times …

Jun 26, 2015 · The authors neglected to report the t-test statistic and I'm stuck on figuring out how to calculate a t-test statistic from a p-value. The gain scores (difference in scores before and after an …

Feb 28, 2017 · Is it possible to calculate the percentile from a T-score? If yes, what formula can be used for it, and what other variables (e.g. standard deviation, degrees of freedom, etc.) are needed for it?

Mar 13, 2015 · Hello: I'm a faculty member teaching a stats class, and I'd like to show students how to calculate the t-statistic from an independent samples t-test (mostly) step-by-step. Using the code …

I know how to calculate t-statistics and p-values for linear regression, but I'm trying to understand a step in the derivation. I understand where Student's t-distribution comes from, namely I can ...

On stattrek, there's a calculator that computes the t-score given the degree of freedom cumulative frequency The formula is given on the page as: Without the population mean, how did the calcula...

Nov 18, 2022 · 1 Can I calculate the t-value of some population, if I only know the mean and standard deviation of the data and not the actual data itself. If not, what are the values I should know to …

Dec 4, 2013 · The Purpose Of The T Test What we are doing when we do a t test is measuring the number of standard deviations our measured mean is from the baseline mean, while taking into …