Question

Sarah predicts that 15 percent of all the birds she spots while bird watching will be robins. At the end of the day, she records that 10 out of the 25 birds she spotted were robins. How does Sarah’s prediction compare with the actual results?

Answer 1

Apply hypothesis testing

Answer 2

Sarah's prediction prediction less than what was reality, she predicted it would be 15% robins, but it was actually 40. You know this because 10/24=.4 and .4 means 40%.