Search results
How do I find T distribution values on the TI-84 Plus family of graphing calculators? tcdf( computes the Student t distribution probability between lowerbound and upperbound for the specified df (degrees of freedom), which must be > 0. Example: Find the area under a T curve with degrees of freedom 4 for P( 1 = X = 5 ). 1) Press [2nd] [DISTR] 6 ...
14 kwi 2020 · To find the T critical value on a TI-84 calculator, we can use the following function: invT (probability, v) where: probability: the significance level. v: the degrees of freedom. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen where you can then use invT ():
Students compare the t distribution to the standard normal distribution and use the invT command to find critical values for a t distribution.
Students compare the t distribution to the standard normal distribution and use the invT command to find critical values for a t distribution.
9 kwi 2020 · A one sample t-test is used to test whether or not the mean of a population is equal to some value. This tutorial explains how to conduct a one sample t-test on a TI-84 calculator.
For example, the formula given for the confidence interval of μ with σ unknown is: ( x̄ - t (n-1, α/2) (S/sqrt (n)), x̄ + t (n-1, α/2) (S/sqrt (n)) ) The problem arises in determining what values to use for the critical values for the t-test and how to express it in the ti-84.
13 kwi 2020 · This tutorial explains how to use the following functions on a TI-84 calculator to find normal distribution probabilities: normalpdf (x, μ, σ) returns the probability associated with the normal pdf where: x = individual value. μ = population mean. σ = population standard deviation.
