A research hospital tries a new antibiotic scrub before surgery to see whether i

Question

A research hospital tries a new antibiotic scrub before surgery to see whether it can lower the rate of infections of surgical sites. The old rate of infection is 2.1%. The null hypothesis is that the proportion of infections is 0.021, p = 0.021. Report the alternative hypothesis in words and in symbols. Report the alternative hypothesis in words. OA. Ha Of the next 1000 surgeries, less than 21 will result in an infection. OB. Ha: The proportion of infections is not 0.021 O C. Ha: Of the next 1000 surgeries, either more or less than 21 will result in an infection. D. Ha: Of the next 1000 surgeries, more than 21 will result in an infection O E. Ha: The proportion of infections is less than 0.021 OF. Ha The proportion of infections is greater than 0 021 Report the alternative hypothesis in symbols H:0.021

Explanation / Answer

Oprion-E) The proportion o finfections is less than 0.021

Ha : p < 0.021                                                                                                                                                                                                                                                                                                                                                                            

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