A 2005 poll sampled 523 adults who planned a holiday weekend within six months and found that 141 ...

A 2005 poll sampled 523 adults who planned a holiday weekend within six months and found that 141 were expecting to fly away for the weekend. A similar survey in 1995 found that 477 adults planned a holiday weekend within six months, of which 81 expected to fly. PART (1): State the hypotheses that can be used to determine whether a significant change occurred in the population proportion of the aforementioned by plane over a 10 year period. PART (2): What is the sample proportion of adults expecting to travel by plane in 2005? And in 1995? PART (3): Use alpha = .01 to test for a significant difference. Conclusion?