![]() ![]() ![]() How to make the final decision of the Hypothesis Test? Now, this Z score is looked up on the Z table to find the corresponding cumulative probability till that point.įurther, if it was a two tailed test then this value is multiplied by 2 to get the final P value. Sigma is the Standard Deviation of the Sample, The formula for calculating the P-value is as follows: The decision is displayed for both One Tailed Test and Two Tailed Test as well. The calculator also displays the decision for an alpha value or significance level of 5%. Along with the P-value it also displays the Z score. The calculator will display the P value for One Tailed test as well as for Two Tailed Test. This P value is then used to make a decision of either rejecting the null hypothesis or fail to reject the null hypothesis by comparing the P value to the Significance level or Alpha value. ![]() The sample mean, the hypothesised mean, the sample size and the standard deviation of the sample are the metrics used to calculate the Z score and based on this value the P value is calculated using the Z table. P Value calculator is a simple and easy to use tool which helps in calculating the P value using the Z score calculated by using the statistical measures of the sample. ![]()
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