Data from U.S. cancer timer registries suggest that all people with the hype of

Question

Data from U.S. cancer timer registries suggest that all people with the hype of long cancer where surgery is 40% survive for 3 years from the have if diagnosis and 33% survive for 5 years. A new type of surgery and the biotechnology company that the new type of surgery claims that it has increased survival. To test the claim 100 patients with lung cancer went through the surgery method, of 100 patients, 55 survived for 3 years and 45 survived for 5 years. Can we any that the new from of surgery is greater than the standard form of surgery? a Finally the null and alternative hypothesis b Find the cereal value, f-value c Conclude

Explanation / Answer

(a) Ho: p = 0.33 versus Ha: p > 0.33

(b)

= 0.05

Critical z- score = 1.644853627

SE = {(p (1 - p)/n} = (0.33 * (1 - 0.33)/100) = 0.047021272

z = (p' - p)/SE = (0.45 - 0.33)/0.047021271782035 = 2.55203646

p- value = 0.0053548

(c) Since 0.005 < 0.05, we reject Ho

Conclusion: The new surgery appears to be better.

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