Question

0 out of 2 points Question 37 A pollster wishes to estimate the true proportion of U.S. voters who oppose capital punishment. How many voters should be surveyed in order to be 95% confident that the true proportion is estimated to be within 5%? (Round answer to a whole number.) Selected Answer: 2401 Response Feedback: Be careful of your rounding/calculations! 2 out of 2 points Question 38 Find the correlation coefficient r for the given table below and use it to determine if there is a Strong Negative or Strong Positive or Weak Negative or Weak Positive correlation. (Check your spelling!) Court Income 65 404 1567 1131 272 252 111 154 32 56 46 61 25 26 18 Justice Salary 30 44 92 Selected Answer: Strong Positive 7:43 PM a el 7/28/20 5

please help with 37. thank you

Answer 1

97)

When prior estimate for proportion is not specified then p = 0.50

Sample size = Z² $\alpha$ /2 * p (1 - p) / E²

= 1.96² * 0.50 * 0.50 / 0.05²

= 384.16

Sample size = 385 (Rounded up to nearest whole number)