Comparing a p-value of 0.0187 with a 2.5 percent significance level, the decision is to:

1. The rule compares the p-value with the chosen significance level. 2. The calculator gives a p-value of 0.0187 for the worked case. 3. A 2.5 percent level of significance corresponds to 0.025. 4. Since 0.0187 is smaller than 0.025, the evidence clears the bar and the null is rejected. 5. Had the p-value been larger than the level, the null would have stood. _Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 9 'Hypothesis Testing with One Sample', sections 9.1-9.6_