self study - How can I calculate t-score without knowing true ...
So in formula above I need true population mean μ to calculate t-score. You need a hypothesis about what it is, that is: a possible value for it. You dont need to know what that value really is. …
How can I calculate a critical t value using R? - Cross Validated
Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …
How do I calculate a t-score from a p-value (gain scores and N …
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 …
Manually Calculating P value from t-value in t-test
The t-value calculated using this method is the same as output by the t-test R function. The p-value, however, comes out to be 3.025803e-12. Any ideas what I'm doing wrong?
How did the stattrek calculator compute the t-score without the ...
The calculator uses the theory behind the t-distribution to determine P(t) given t, or t given P(t). This will only accurately relate the t calculated from your data set to the empirical distribution …
r - How can I calculate the critical t-values of a linear regression ...
Feb 11, 2019 · Students are still taught them because they are not allowed to use a computer during exams and have to used t-tables. In practice, you use software to calculate a p-value …
hypothesis testing - Can I calculate the t-value only using mean …
Nov 18, 2022 · 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 …
t test - Calculate the percentile from a T-score - Cross Validated
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 …
t test - Calculate t-statistic step by step in R - Cross Validated
Mar 13, 2015 · t.test(percent ~ sex, data=tips, var.equal=TRUE) # Two Sample t-test # # data: percent by sex # t = 1.0834, df = 242, p-value = 0.2797 # alternative hypothesis: true …
t-statistic for linear regression - Cross Validated
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 ...