A supermarket manager wants to know what fraction of customers like to eat chicken. The manager plans to ask a sample of customers, “Do you like to eat chicken?” Which of the following samples is most likely to produce a valid answer?
Answers
A supermarket manager wants to know what fraction of customers like to eat chicken. The manager plans to ask a sample of customers, “Do you like to eat chicken?” Which of the following samples is most likely to produce a valid answer?
a) The 98 people who purchase chicken
d) The 113 people who do not purchase chicken
c) The 82 people who purchase beef and chicken
d) The 104 people who are randomly selected
The manager wants to know the fraction of customers who like to each chicken.
If he selects only the customers who eat chicken, he cannot calculate the fraction.
He cannot even calculate the fraction if he selects the customers who don’t eat chicken.
If he selects people at random, he is most likely to get the best results.
So option (d) The 104 people who are randomly selected will be the one that is the most likely one to produce a valid answer.