Chapter 12.1, Problem 25E

To determine

To find: the correction option on the basis of given information.

Answer to Problem 25E

  $H_0:{\beta }_1=0versus{H}_a:\beta >0$

Explanation of Solution

Given:

  

Claim: Slope is positive (y increases as x increases).

The null hypothesis or the alternative hypothesis statement is the mention claim the null hypothesis statement is that the slope is zero. If the mention claim is the null hypothesis, then the alternative hypothesis statement is the opposite of the null hypothesis.

  $\begin{array}{l}{H}_0:{\beta }_1=0\\ H_a:\beta >0\end{array}$

Hence, the correct option is (a)