Examples of P Critical Value

Example 1

Emma wants to check the p-value of an experiment of filling 250 boxes of mango juice according to the status 100ml. Calculate the p-value of the experiment if the z-value for one-tailed is 0.35

Solution

Step 1: First of all, make the null and alternative hypotheses of the given experiment.

Null hypothesis = h₀ = quantity of mango juice in the boxes is 100ml

Alternative hypothesis = h_a = quantity of mango juice in the boxes is different from 100ml

Step 2: Now find the test statistics of the given experiment according to the given values.

The test statistics of the given experiment are already given.

Z value = 0.35

Step 3: Now take a standard distribution table and indicate the corresponding value on that table.

The value on the standard distribution table is 0.36317

Note: If the test or z value is two-tailed then you have to multiply the corresponding value on standard distribution table by 2.