A hypothesis test is a ʺtwo-tailedʺ if the alternative hypothesis contains a _______ sign. A) $\neq$ B) + C) $$ 2 Explain Type I and Type II errors.

Question

A hypothesis test is a ʺtwo-tailedʺ if the alternative hypothesis contains a _______ sign. 
A) $\neq$
B) +
C) $<$
D) $>$ 2 Explain Type I and Type II errors.

Quizplus · Accepted Answer

A two-tailed hypothesis test is used when the alternative hypothesis specifies that the parameter is not equal to the value stated in the null hypothesis, indicated by the $\neq$ sign. This means we are interested in deviations in both directions from the hypothesized value. Type I error occurs when the null hypothesis is true, but we incorrectly reject it. Type II error happens when the null hypothesis is false, but we fail to reject it.

A Hypothesis Test Is a ʺTwo-Tailedʺ If the Alternative Hypothesis ≠\neq=

A Hypothesis Test Is a ʺTwo-Tailedʺ If the Alternative Hypothesis $\neq$