A research firm conducted a survey of 1,200 households chosen at random to determine pet ownership. The survey found that 65% of the sampled households own at least one pet, with a margin of error of 4.5%. Which of the following is a plausible conclusion about the percentage of all households that own at least one pet?
It is certain that exactly 65% of all households own at least one pet.
It is plausible that the percentage of all households that own at least one pet is between 60.5% and 69.5%.
The survey results indicate that less than 60.5% of the sampled households own at least one pet.
The true percentage of all households that own at least one pet is definitely not 60%.
