Environmentalists concerned about the impact of high-frequency radio

Environmentalists concerned about the impact of high-frequency radio transmissions on birds found that there was no evidence of a higher mortality rate among hatchlings in nests near cell towers. They based this conclusion on a test using α=0.05.α=0.05. Would they have made the same decision at α=0.10?α=0.10? How about α=0.01?α=0.01? Explain.