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Get Full Access to Statistics For Business And Economics - 12 Edition - Chapter 8 - Problem 101se
Get Full Access to Statistics For Business And Economics - 12 Edition - Chapter 8 - Problem 101se

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# Life expectancy of Oscar winners. Does winning an Academy

ISBN: 9780321826237 51

## Solution for problem 101SE Chapter 8

Statistics for Business and Economics | 12th Edition

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Problem 101SE

Problem 101SE

Life expectancy of Oscar winners. Does winning an Academy of Motion Picture Arts and Sciences award lead to long-term mortality for movie actors? In an article in the Annals of Internal Medicine (May 15, 2001), researchers sampled 762 Academy Award winners and matched each one with another actor of the same sex who was in the same winning film and was born in the same era. The life expectancies (ages) of the pairs of actors were compared.

a. Explain why the data should be analyzed as a paired difference experiment.

b. Set up the null hypothesis for a test to compare the mean life expectancies of Academy Award winners and nonwinners.

c. The sample mean life expectancies of Academy Award winners and nonwinners were reported as 79.7 years and 75.8 years, respectively. The p -value for comparing the two population means was reported as p = .003. Interpret this value in the context of the problem.

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Leslie Ogu COMM 1042 03/21/2017 - ​Different Types of Speeches Informative Speech - Purpose:​ Increase the knowledge of the audience - Principles: - Newness – present something new; latest developments - Credit your sources with date of when it was attained and when it became known to the public - Objective – impartial development of the topic; summarize without taking sides - Clarity – ensure the message is clear and explain everything - Information Lead – don’t overload audience with information - Give examples when necessary - Level of Abstraction – everyone does

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