P (body) + p (tail) = 1.00.
Z statistic chart. The standard deviation is σ = 4. Z test statistics is calculated using the formula given below. The mean is μ = 80.
Where the row and column intersect is. Table entries for z define the area under the standard normal. The z test formula compares the z statistic with the z critical value to test whether there is a difference in the means of two populations.
In hypothesis testing, the z critical value divides. 32 rows how to read a positive z score table. The individual value we’re interested in is x = 75.
For instance to find the values of n (0.46), 1st locate the row of 0.4 and then, locate the 0.06 column.