The critical value for the left-tailed test with a significance level of α=0.04 is -1.75 (rounded to two decimal places).
To find the critical value for a left-tailed test with a significance level of α=0.04 using the standard normal distribution table (z-table), you need to find the z-score that corresponds to the cumulative probability of α.
Look up the area to the left of α in the z-table. For a left-tailed test, this is simply α.
Find the z-score corresponding to the cumulative probability of α.
Let's find this value:

Looking up
in the z-table, you find the corresponding z-score. You can use statistical software, a calculator, or a standard normal distribution table to find this value. Typically, this involves finding the intersection of the row corresponding to 0.0X and the column corresponding to 0.04.
The z-score for α=0.04 is approximately -1.75.
Question:
Using the z table (The Standard Normal Distribution Table), find the critical value (or values) for the left-tailed test with a=0.04. Round to two decimal places, and enter the answers separated by a comma if needed. Critical value(s):