A polling organization reports that the proportion of U.S. adults who believe that Earth’s temperature has been increasing over the past 100 years is 81%.

(a) state the null and alternative hypotheses and identify which represents the claim,

(b) describe type I and type II errors for a hypothesis test of the claim,

(c) explain whether the hypothesis test is left-tailed, right-tailed, or two-tailed,

(d) explain how you should interpret a decision that rejects the null hypothesis, and

(e) explain how you should interpret a decision that fails to reject the null hypothesis.