Historically, about 58% of the population at a certain country believed that the planet's temperature was rising ("global warming"). A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed 1068 adults in the population and 604 said they believed that global warming was real (Assume these 1068 adults represented a simple random sample) Complete parts a through c below a. What percentage in the sample believed global warming was real in 2010? = % (Round to one decimal place as needed ) Is this more or less than the historical 58%? 0 less 0 more b Test the hypothesis that the proportion of the population who believe global warming is real has changed Use a signicance level of 0 05, What are the null and alternative hypotheses? o A. Hu p058 Ha 9:058 O B. Hu p0.58 @ c. Hu {1:058 Ha.p058 O D. Hu 9:058 Ha. p>0.58 O E. Ho p>d58 H2. p 0.58 Ha: p