The crime clearance rate for violent crimes in the U.S. in 2018 was 45.5%. A citizen sleuth predicts that with equitable policy changes, crowdsourcing, and an increase in police resources, this rate is higher today. She randomly selects 1000 public violent crime case files in the US in 2020 and determines that 490 of them were cleared. What can she conclude at the 0.05 level of significance?

Show all work by hand. State the hypothesis, show the p-value, write your calculator syntax, and write your conclusion and interpretation to the test in a complete sentence.