In One Sample Proportion test it is critical to understand t

In One Sample Proportion test, it is critical to understand the direction of the alternative hypothesis. What are the directions of the following two examples of alternative hypotheses?

1)      H_a: P < 0.2
2)      H_a: P > 0.7

1) is left tailed and 2) is right tailed.

1) is right tailed and 2) is left tailed.

Both are left-tailed

Both are right-tailed

Solution

1)      Ha: P < 0.2 ,, It is left tailed .

2)  Ha: P > 0.7 , it is right tailed

Alternative is two tailed only when we have not equal assigned. & the remaining are fall under one tailed. A one tailed may be left tail or right tail