Question: While flu vaccination does not prevent COVID-19, flu vaccination is critical to protecting Australians' general health from influenza. A researcher surveyed a random sample of
While flu vaccination does not prevent COVID-19, flu vaccination is critical to protecting Australians' general health from influenza. A researcher surveyed a random sample of 62 people who had been given the flu vaccine last year and found that 21 did not contract the flu.
- What is the proportion of people who did not contract the flu? (round to 3dp)Answer
- What is the lower bound of a95%confidence interval for the proportion of people who did not contract the flu? (round to 3dp)
- What is the upper bound of a95%confidence interval for the proportion of people who did not contract the flu? (round to 3dp)
- Using the confidence interval, can we make the following statement? The flu vaccine is effective (i.e.it prevents the flu) in50%of people vaccinated.
Please answer questions using:
a) conditions met
b) conditions not met
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