EVERYTHING YOU SHOULD KNOW ABOUT P-VALUE FROM SCRATCH FOR DATA SCIENCE!

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The p-value is a probability score and it is normally used in the statistical test and to decide the statistical score of a range of particular values. This is the value you are likely to find in all the observations if the null hypothesis is correct about the observations. The p value calculator can be great at finding the likely values in the statistical data. Scientists and Researchers are normally using the p-value, but not completely understanding what is the meaning of it. The p-value guides us about the probability value and also tells us how likely your data is going to occur under the prescription of the null hypothesis.

P-value calculator normally helps to find the range of the values, which are going to occur, when we are conducting a special sort of experiment. When we are using the p-value, we are actually testing the statistical data on the basis of probability and the chances of the data. The P value calculator is going to test the whole statistical data of the observations and the changes of the probability of the occurrences of the same data or the values. This same value is going to repeat as many times as it can, or the result is always around the p-value.

The p-value is always at the extreme level when the null hypothesis is going to be true for the statistical data. The p-value would be larger when the test values are going to come close to the null hypothesis, and the values are going to come smaller when the values are going to come away from the null hypothesis.

Why are we using p-value?

In statistics when you are conducting research on a large population, it would become impossible for you to research on the whole population. In this case, we are going to muse the p-value. The p-value significance would help to find the sample representative of the whole population. The p-value is not going to provide the absolute value, but the values we get by using the p value calculator would normally be close to the absolute value of the whole population. When the p-value results come, it is almost absolute in its nature, and the error comes in the p-value results, but it is so small, you can ignore it. The p-value results are normally considered to be the true result of the whole population.

Example of p-value results:

For example, if you want to find the Fashion requirements of the people in a specific region, you would use the p-value results. As it can be just impossible to know the needs and wants of the whole population. To calculate p value of that population and the result would direct you, what are the requirements of the whole population. The error comes in that this data is so small, that no one can simply ignore it, and would consider the data as the representative of the whole population. Fashion designers can rely on the data presented by the p-value results and can design the clothes accordingly.

How to find the p-value?

Most people do wonders, how to calculate p value, as it is the most useful value to calculate to find the p-value results, to implement the critical organizational strategies. The p-value results are quite true about the whole population, and you can implement an organizational strategy for a particular population.

p-value results are simply the changes of the occurrence of the odds of happening of a particular event if the null hypothesis is true for the whole data. The p value calculator is useful, if you have data about the whole population, you can determine the needs and wants, and various trends of this population by applying the p value.

To perfectly find the p-value results, we need to draw a null hypothesis about the data, so to understand the p-value results, we need to understand the null hypothesis.

The Null Hypothesis and p-value:

The Null Hypothesis is a hypothesis that describes what we are claiming about a certain population that is only coming close to our finding just by chance. The values we are finding come to our observation close just by luck. If the observed values are coming close to the p value calculator, then we can assume that they are coming similar to each other, just by chance. You can say, the Null Hypothesis is used to find the truthfulness of our claimed values by p values. The p value calculator is just an indication of the trends of the whole population, but these results are just too close to the actual values.

The formula for the p-value:

The p value calculator is using the sampling distribution to find the results. We usually test the data under the assumption of the null hypothesis, the test is conducted by the lower tailed test, the upper tail test, and also the two-sided test.

Here we are only describing the lower tail test formula:

                  p-value =  P(TS ts | H 0 is true) = cdf(ts)

Where:

  • P= Probability of the event, or the chances of occurrence of the event
  • TS is the Test Statistics of the observations
  • ts  are the observed values of the test calculated from your sample
  • cdf() Cumulative distribution of a function and we are testing it under the null hypothesis.

The last word:

P value calculator automatically represents all the p-value results, which we can use in making the organizational strategies. Our target and the strategies should be based on some kind of statistical data. The p-value results normally provide us with the basic statistical proof to make and implement a strategy. The p-value results are the basis of making many organizational goals and objectives, so it is crucial to find the correct values about a certain type of population. P value calculator is critical to test the null hypothesis on the p-values observation if the alternative results are true for the data. It means the p-value results are true for the whole population. This can be critical for the growth of the whole organization.