In a statistical test, we have a choice of a left-tailed test, a right-tailed test, or a two-tailed test. is it the null hypothesis or the alternate hypothesis that determines which type of test is used

Alternate Hypothesis determines which type of test is used.                  

Step-by-step explanation:

We have find the hypothesis that helps us o determine the nature of test.

There are three types of test two tailed test, lest tailed test or right tailed testIt is the alternative hypothesis that states the nature of test.The null hypothesis always state that the sample belongs to the population and always shows equality to the population.The alternate hypotheses states that whether the sample belongs to the population or not and tell that there is a significant difference between the two variables.For example, for a one sample test of population mean we have the following alternate and null hypothesis.

What is the diagram u didn't post that

Idk i can’t read that