PLEASE HELP.

a.Find a 95% confidence interval for the proportion of Canadians who believed there was the "correct level of response to this very real threat" in response to Covid-19 as of March 20-22 2020. Write in the form (x, y) where x and y are rounded to 3 decimal places.

b. b.Assuming that Ledger's methods produce unbiased samples, can we be confident that a majority (more than half) of Canadians on March 20-22 believed there was the correct level of response?

c. Suppose that another pollster asked the same question to 600 people, rather than 1508 people. Would you expect the margin of error on their poll to be larger or smaller than Ledger's and why?

COVID-19 PANDEMIC POLL In an online Leger poll of 1,508 Canadian adults, conducted March 20 to March 22, 2020, respondents were asked... Do you believe that the COVID-19 pandemic is a real threat or is it being blown out of proportion? Being blown . Partly blown Partly correct level Correct level of way out of out of of response to this response to this proportion proportion real threat very real threat 2% 4% 16% 19% 58% DNK / Refusal 20% 77% SOURCE: LEGER THE CANADIAN PRESS