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In: Statistics and Probability

Of 1000 randomly selected cases of lung cancer, 823 resulted in death. Round the calculated proportion...

Of 1000 randomly selected cases of lung cancer, 823 resulted in death. Round the calculated proportion to 3 decimal places.
(a) Test the hypotheses H0: p = 0.87 versus H1: p ≠ 0.87 with α = 0.05. Round your answer to 2 decimal places.
(b) Construct a 95% two-sided CI on the death rate from lung cancer. Round your answers to 3 decimal places.
(c) How large a sample would be required to be at least 95% confident that the error in estimating the death rate from lung cancer is less than 0.02? Round your answer up to the nearest whole number. Answer is exact.

(a) z0 =  
H0 (can or cannot) be rejected  
(b)   ≤ p ≤  
(c) n =  

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orchestra answered 1 year ago
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