Answer the following 4 questions:Hint: Solve all the questions before you look for the answers among the choices.(Rounded to 4 decimal places when necessary)a) What is the best point estimate to be used to construct the confidence interval? b) What is/are the critical value(s) for the 91% confidence interval?c) What is the 91% confidence inteval estimate of the population proportion of people who said "yes" that the pandemic affected their spending ?d) What is the margin of error for the confidence interval constructed in (c)?

Quick Poll - Sept. 28, 2020 Do you understand the guidelines on when and where to get a COVID-19 test? Yes 1238 (58 %) No 883 (42 %) Total number of votes: 2121 Source: https://ottawa.ctvnews.ca/community/polls Use the above poll result to find the 91% confidence inteval estimate of the true proportion of people who said "yes" that they understand the guidelines on when and where to get a COVID-19 test