Please help Q1-Q4 While flu vaccination does not prevent COVID-19, flu vaccination is critical to protecting Australians
Posted: Sun Sep 05, 2021 5:20 pm
Please help Q1-Q4
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 56 people who
had been given the flu vaccine last year and found that 22 did not
contract the flu.
Q1: What is the proportion of people who did not contract the
flu? (round to 3dp)
Q2: What is the lower bound of a 95% confidence interval for the
proportion of people who did not contract the flu? (round to
3dp)
Q3: What is the upper bound of a 95% confidence interval for the
proportion of people who did not contract the flu? (round to 3dp)
Answer (1 mark)
Q4: Using the confidence interval, can we make the following
statement? The flu vaccine is effective (i.e. it prevents the flu)
in 50% of people vaccinated.
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 56 people who
had been given the flu vaccine last year and found that 22 did not
contract the flu.
Q1: What is the proportion of people who did not contract the
flu? (round to 3dp)
Q2: What is the lower bound of a 95% confidence interval for the
proportion of people who did not contract the flu? (round to
3dp)
Q3: What is the upper bound of a 95% confidence interval for the
proportion of people who did not contract the flu? (round to 3dp)
Answer (1 mark)
Q4: Using the confidence interval, can we make the following
statement? The flu vaccine is effective (i.e. it prevents the flu)
in 50% of people vaccinated.