Question

High levels of blood sugar are associated with an increased risk of type 2 diabetes. A level higher than normal is referred to as “impaired fasting glucose.” An article reports a study in which 48 of 155 people with impaired fasting glucose had type 2 diabetes. Consider this to be a simple random sample. A doctor claims that less than 35% of people with impaired fasting glucose have type 2 diabetes. With what level of confidence can this claim be made? (Express the final answer as a percent.)

Answer 1

At 85% level of confidence the claim is supported by the sample .