this is a multiple choice question and the answer to this question has been highlighted in bold letters.
Based on a confidence interval, the best way to get a decision on a hypothesis test is for you to fail to rej<u>e</u><u>c</u><u>t</u><u> </u><u>the </u><u>null</u><u> hypothesis</u><u> (</u><u>that </u><u>is,</u><u> </u><u>you </u><u>will</u><u> </u><u>have</u><u> to</u><u> </u><u>accept</u><u> the</u><u> null</u><u> hypothesis</u><u>)</u><u> </u><u>if </u><u>the </u><u>hypothesized</u><u> </u><u>value</u><u> </u><u>for</u><u> the</u><u> </u><u>parameter</u><u> </u><u>that </u><u>is </u><u>being</u><u> </u><u>tested</u><u> </u><u>is </u><u>within</u><u> the</u><u> </u><u>confidence</u><u> interval</u><u>.</u>
To do this, change into common denominators. The common denominator is 21 so change the problem from 1/3 + 1/7 to 7/21 + 3/21. This gives you 10/21. It is already in simplest form.
