Question: Problem 5: A medical researcher estimates that no more than 55% of the U.S. adults eat breakfast every day. In a random sample of 250 U.S. adults, 56.4% say that they eat breakfast every day. At a = 0.01, is there evidence to reject the researcher's claim?

(b) Test Statistic:

(c) Conclusion:

(d) Construct a 99% C.I. for the proportion of adults who eat breakfast.