a medical researcher says that less than 80% of u.s. adults think that healthy children should be required to be vaccinated. In a random sample of 200 US adults. 82% think that healthy children should...

a medical researcher says that less than 80% of u.s. adults think that healthy children should be required to be vaccinated. In a random sample of 200 US adults. 82% think that healthy children should be required to be vaccinated. At x=0.05, is there enough evidence to support the researcher's claim