Practice
Check your answer
Choose a response and explain your reasoning.
Juniper Year 2's sample mean is 2.5 days lower and median 5 days lower than Year 1. Its spread is much larger, and the separate one-sample intervals overlap. No two-sample, policy, open-invoice, customer-mix, or future data are supplied. Which conclusion stops at the evidence boundary?
The best answer does not evade interpretation. It makes the supported result clear and names the evidence needed to climb to a stronger claim.