Discuss reasons that might provide explanation of conclusion

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Reference no: EM131456805

Question: A 2003 New York Times ICBS News poll sampled 523 adults who were planning a vacation during the next six months and found that 141 were expecting to travel by airplane (New York Times News Service. March 2. 2003). A similar survey question in a May 1993 New York Times/CBS News poll found that of 477 adults who were planning a vacation in the next six months. 81 were expecting to travel by airplane.

a. State the hypotheses that can be used to determine whether a significant change occurred in the population proportion planning to travel by airplane over the 10-year period.

b. What is the sample proportion expecting to travel by airplane in 2003? In 1993?

c. Use α = .01 and test for a significant difference. What is your conclusion?

d. Discuss reasons that might provide an explanation for this conclusion.

Reference no: EM131456805

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