The T Statistic For A Correlation Of 50 With A Sample Size Of 10 Is. If you set nratio to be a negative number then the absolute value of this number will be used as the sample size of the second sample. The value of the test statistic t is shown in the computer or calculator output along with the p -value.
T-statistic174 it is significant to reject the null hypothesis. A sample size of 20 produces a correlation coefficient r38. If nratio -50 then the T2_SIZE function will find the size of the first sample assuming that the second sample has 50.
If you set nratio to be a negative number then the absolute value of this number will be used as the sample size of the second sample.
Because the formula used here is based on approximating the T statistic with a Z statistic it will slightly underestimate the sample size when N is less than about 30. A researcher obtains SSX 20 SSY 5 and SP 7 for a set of n 25 pairs of scores. CorrTTestr size tails the p-value of the one-sample test of the correlation coefficient using Theorem 1 where r is the observed correlation coefficient based on a sample of the stated size. The two samples have means of 10 and 12 standard deviations of 12 and 14 and sample sizes of 17 and 15.
