566 APPENDIX A z 0 NEGATIVE z Scores TABLE A-2 Standard Normal (z) Distribution: Cumulative Area from the LEFT z.00 .01 .02 .03 .04 .05 .06 .07 .08 .09 3.50 and lower

A negative number result for a t-test indicates that the probability calculated is to the left if you are graphing it on the bell curve. Importantly, it does not indicate a "less than zero" chance

Negative Z Score Table. Find negative Z scores in this table and use our Z Score Calculator. Positive Z Score Table. Find positive Z scores in this table. Powered by Create your own unique website with customizable templates. Get Started. T Value Table

The t distribution calculator accepts two kinds of random variables as input: a t score or a sample mean. Choose the option that is easiest. Here are some things to consider. If you choose to work with t statistics, you may need to transform your raw data into a t statistic.

If it's a one-sample t-test, then a negative t-value only means that the sample mean was less than the test value. If it's a two-sample t-test, then the negative t-value only means that the sample mean of the first population was less than the sample mean in the second populationthe negative sign isn't all that important.

Solving problem with negative tcalc value. Please help. Ask Question and the t-value can be negative - it does not have to be positive, as you have incorrectly assumed. You can use a table, or one of the many online calculators available on the web to carry out this operation. Let's call