In a medical journal report, the observed mortality of smokers and nonsmokers for laryngeal squamous cell carcinoma was reported to be significant at p < 0.05. Such a statement means that
- The investigator is rejecting the null hypothesis even though the results could have occurred purely by chance a maximum of 5 times out of 100.
- There is a difference between the mortality rates of smokers and nonsmokers 5% of the time
- The null hypothesis claims that there is a difference between the mortality rates of smokers and nonsmokers.
- A causal relationship between smoking and mortality may be established through this study
- There is insufficient data, as the total number of smokers and nonsmokers were not given.
Medicine
a) The investigator is rejecting the null hypothesis even though the results could have occurred purely by chance a maximum of 5 times out of 100.
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