In a June 2021 survey by Insider, “52% Americans want all student-loan borrowers to  have their debt forgiven”. A random sample of 3600 adults through GoBankingRates – personal finance portal.  444 a.) Find the 90% confidence interval for the true proportion of Americans that want  all student loan borrowers to have their debt forgiven. b.) Let’s say the full sample has a margin of error of plus/minus 3.6 percentage points.  If we want a margin of error of 3 percentage points with 95% confidence, how large of  a sample should be used

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