Skyler goes to a school which has 1000 students in it. She asks 40 random students whether

Skyler goes to a school which has 1000 students in it.
She asks 40 random students whether they like the new 8.30 am start to the day.
30 of them say no they do not like it.
Use this information to
estimate how many students in the whole school
dislike the 8.30 am start.