Answer the following questions. Put the answers on the blanks! Round to 2 decimal places. 1. A survey of 2306 adult American workers aged 18 and older found that 417 have donated blood in the past two years. [1: point estimate for the population proportion: = symbol number from problem point estimate of the population standard deviation: = symbol number from problem 95% Condence Interval: Give the written interpretation for this interval: 2. Fourteen different second-year medical students at ABC Hospital measured the blood pressure of the same person (the results are below). Assume the population is normally distributed. 138 130 135 140 120 125 130 130 144 143 140 130 150| 120 Find a point estimate for the population mean: symbol number from problem Find a point estimate for the population standard deviation: = symbol number from problem Find a 98% confidence interval for the true mean blood pressure: Give the written interpretation for this interval