(Answered) Scrubs refer to exercise suppose a sample of 600 surgeries

Statistics

Scrubs Refer to Exercise. Suppose a sample of 600 surgeries with the new scrub shows 18 infections. Find the value of the test statistic, z, and explain its meaning in context. The old infection rate was 4%.

Exercise

Scrubs 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 4%.

The null hypothesis is that the proportion of infections is 0.04, p = 0.04. Give the alternative hypothesis in words and symbols.

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