Talk:Documentation/Calc Functions/T.DIST.RT

SF comments

 * (1) Summary. Suggest replacing with – “Calculates right-tailed test values for the Student's t-distribution (often known more simply as just the t-distribution). The Student's t-distribution is often used to test a hypothesis about a population’s mean when the population’s standard deviation is not known. The Student’s t-distribution can be used with any statistic whose distribution is approximately normal.”.
 * (2) Returns. Suggest replacing with – “Returns a positive real number in the range 0 to 1 (exclusive) representing the total area under the right tail of the probability distribution function of the specified Student’s t-distribution, lying above the given Number.”.
 * (3) Arguments, 1st paragraph. I do not think that that the “non-negative” condition is correct for this function. Suggest changing “t-distribution is calculated” to “right-tailed test value for the Student's t-distribution is to be calculated”.
 * (4) Arguments, 2nd paragraph. Insert “Student’s” before “t-distribution”.
 * (5) Arguments, 1st bullet. Recommend deletion.
 * (6) Arguments, 3rd bullet. Insert “a” before “non-integer”.
 * (7) Additional details, general. May be worth explicitly stating that T.DIST.RT(x ,y) = 0.5*T.DIST.2T(x, y) and that T.DIST.RT(x, y) = TDIST(x, y, 1) and that T.DIST.RT(x, y) = 1 – T.DIST(x, y, 1).
 * (8) Examples, 1st example. This example loses impact because it is not preceded by a similar example but with DegreesFreedom set to exactly 1. Suggest inserting “test value for the” before “Student’s”. Also, insert “a” before “non-integer”.
 * (9) Examples, 3rd example. The formula given actually gives an error 504 because it has too many arguments.

--Stevefanning (talk) 2020-11-07T23:32:01 (UTC)

Ronnie
all points addressed.

--Ronnie rg8888 (talk) 2020-11-29T17:13:05 (UTC)