A sample of 260 observations selected from a population produced a sample proportion equal to 0.85. a. Make a 92 % confidence interval for p. b. Construct a 95 % confidence interval for p. c....

Extracted text: A sample of 260 observations selected from a population produced a sample proportion equal to 0.85. a. Make a 92 % confidence interval for p. b. Construct a 95 % confidence interval for p. c. Determine a 97 % confidence interval for p. Note 1: Your confidence interval should be given in the format of (a, b) where a andb are two numbers. Note 2: Keep 3 decimal places in your answer for the confidence interval.