How do I solve the following using a chi-square test?

Null- reenlistment bonuses do not determine whether a sailor reenlists

Alternative- reenlistment bonuses do determine whether a sailor reenlists

30 sample participants were surveyed to determine whether reenlistment bonuses determined their reenlistment decision or not. The possible answer choices on the survey were either yes or no.

Signifignace level = 0.05

Yes No Total

Expected 7 9 16

Observed 7 8 14

Total 14 16 30

What is the test statistic?

What is the decision rule?

What are the degrees of freedom?

What is the p-value?

What is the conclusion?