A government officialis in charge of allocating social programs throughout the city ofVancouver. He will decide where these social outreach programsshould be located based on the percentage of residents living belowthe poverty line in each region of the city. He takes a simplerandom sample of 120 people living in Gastown and finds that 21have an annual income that is below the poverty line.
Part i) The proportion of the 120 people whoare living below the poverty line, 21/120, is a:
A. variable of interest.
B. parameter.
C. statistic.
Part ii) Use the sample data to compute a 95%confidence interval for the true proportion of Gastown residentsliving below the poverty line.
(Please carry answers to at least six decimal places inintermediate steps. Give your final answer to the nearest threedecimal places).
95% confidence interval = ( , )
