You can use this p-value calculator to calculate the right-tailed, left-tailed, or two-tailed p-values for a given z-score. It also generates a normal curve and shades in the area that represents the p-value.

Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.

Free Standard Normal Distribution Calculator - find the probability of Z using standard normal distribution step-by-step

principle to nd P(Z> 2). Sketch the region under the standard normal curve whose area is equal to P(Z> 2). P(Z6 2) = 0:9772 so P(Z> 2) = 1 0:9772 = 0:0228.

这是标准正态分布的 "钟形" 曲线。 它是个平均值为 0 并且 标准差 为 1 的 正态分布。 你也可以用以下的列表。 列表显示从 0 到 Z 的面积。 为了让列表不太长，我们把 " 0.1 " 的值垂直排列，然后把每个 0.1 后面的 " 0.01 " 值水平排列。 （下面有使用的例子） 所以总体的 17.36% 是在离平均值 0 到 0.45个标准差之间。 所以总体的 81.85% 是在离平均值 −1 到 +2个标准差之间。

Oct 23, 2024 · 取伪错误也叫第II类错误或β错误：它是指原假设实际上假的，但通过样本估计总体后，接受了原假设。 明显者是错误的，我们接受的原假设实际上是假的，所以叫取伪错误，这个错误的概率我们记为β。 根据以上描述，我们大概可以推出原假设一般设为想要被拒绝的假设。 假如原假设备被拒绝，如果出错的话，只能犯弃真错误，而犯弃真错误的概率已经被规定的显著性水平所控制了。 这样对统计者来说更容易控制，将错误影响降到最小。 置信水平 (置信度)是指总 …

Use this P to Z calculator to easily convert P-values to Z-scores (standard scores) and see if a result is statistically significant. Supports one-tailed and two-tailed p-values. Detailed information about what a Z-score is.

Use this calculator to compute a two-tailed P value from any Z score, T score, F statistic, correlation coefficient (R), or chi-square value. Once you have obtained one of these statistics (from a publication or even another program) the P value helps interpret its statistical significance.

Use this Z to P calculator to easily convert Z-scores to P-values (one or two-tailed) and see if a result is statistically significant. Z-score to percentile calculator (p-value from Z score) for both one-sided and two-sided p-values.

Sep 8, 2024 · The p-value calculator can help you find the p-value and evaluate how compatible your data is with the null hypothesis.