p value calculator(2020)

P Value Calculator

Example digits=2: (0.001234 => 0.0012)
Left tail - the rejection area is a smaller value. right tail - the rejection area a greater value. two-tailed - the rejection area is split to both a smaller value or a greater value.
The test's statistic value
Standard deviation

The two tails p-value equals: 0.100000

p( x < 1.6448538 ) = 0.950000
p( x > 1.6448538 ) = 0.0500000
p( x < -1.6448538 ) + p( x >1.6448538) = 0.100000

How can a tool be used to find a p-value?

Students often search for something that can help them to make their work easier and faster. When it comes to solving mathematics problems, technical gadgets are the first thing that came in their minds. But what to do when you want to generate p-values from various test scores. This is a situation where you could easily stick down and has nothing to do. At this time you must use a p-value calculator. Yes, you read it right that you might use a p score calculating device to calculate a p-value for a given set of data

What is P-value?

The P-value is a quantitative value that allows you to determine whether you should reject a null supposition or not. Calculating a p-value helps you to check if your claimed supposition is true. For this purpose, you set an approximate level as a cut-off point. This point will help to accept and reject a supposition. This point is also known as Alpha (α). It is also known as the significance density or point. In case alpha is less than p-value then you may not reject the null proposition but if alpha is greater than or fit for the p-value, you must reject the claimed proposition.

How does a p-value can be evaluated?

Calculation of p-value helps in determining the correctness of p-value and thus it could help to analyze if the results are within the normal range of the values being taken. So if you want to know how to find the p-value, just follow the below steps:

  • Step 1: determine the expected results of your experiment
  • Step 2: Determine the observed results of your experiment
  • Step 3: Determine the degree of freedom of your experiment
  • Step 4: Compare the expected result with the observed result
  • Step 5: Choose a cut off level
  • Step 6: Approximate your p-value
  • Step 7: Decide whether to accept or reject the null supposition

What is a P-value calculator?

A p-value calculator is a general solver that can be used to compute a P-value from t, f, z, or chi-square value. It is a tool that can determine the p-value of a normal distribution and evaluate the null assumption created by you. It is also known as the significance level calculator. To compute the p-value, this tool requires the following data:

  • The sample size
  • The hypothesis testing type
    • Right tail: the area under the probability density graph to the right of z mark
    • Left tail: the area under the probability density graph to the left of z mark
    • Two tail: the area under the probability density graph to the right of z mark and left of the number opposite to z score
  • cut off (α)
  • The test static

How does a p-value calculator work?

By using the tool, you may go for finding p-value from t, p-value from f and p-value from z. so if you are thinking how to compute a p-value, you might go for the below-given instruction to use different p-value solvers.

P-value calculator from z

To calculate the p-value from z, just enter your z score in the box, select your alpha level, decide whether you are testing a one-tailed or two-tailed hypothesis and then click on the calculate button. This will help you in calculating your p-value from z using this solver in a few seconds.

P-value calculator from t

If you want to use this tool for finding p-value from t, you just need to enter t score in the required box, degree of freedom in DF box, choose significance level, then click on one-tailed hypothesis or two-tailed hypothesis and then press the calculate button. This solver will thus provide you the fastest result than ever.

P-value calculator from f

This device can make your f score test easier by helping you to estimate p-value from f. you just need to enter f value in the given box, numerator and denominator degree of freedom in the numerator and denominator DF box respectively, chose the significance level and then click on ok button. Your f test result will be given to you.

Some common misinterpretations that you must avoid

While calculating p-value and using the tool, there are some results which you must read carefully. This is because you may misinterpret some statistical cut off and can make the following errors:

  • The low p-value does not mean no effect or no difference between the means
  • Statistical significance is not practical supposition level
  • If a highly significant result is observed, it cannot be inferred as the observed difference is the true difference
  • You cannot attach probabilities to an assumption
  • Never get confused with a one-tailed hypothesis with a one-sided hypothesis and two-tailed hypothesis with the two-sided hypothesis

These are some misinterpretations that often occur among students. It can occur due to a misunderstanding of statistical significance and this will not be the fault of this tool. You may make these errors while analyzing the result and can fall into a big pit.


Using a p-value solving tool for determining the p values from f, t, z, chi-square and, other normal distributions can be a good idea. This can determine whether the null assumption or claimed assumption created by you is true or not. You can use the tool to make your observations more reliable and find the p-value. This solver allows you to find p value faster than ever and is very easy to use. What you need to do is just enter the digits, check on the required points and click on the calculate button. You will get your result and that too in the fastest way. Furthermore, it will never make you delay your mathematics homework due to the unavailability of answers to check your solution.