A recent study shows that 77% of all people file their taxes yearly. A researcher takes a simple random sample of 100 people. For what value of p is there is a 20% chance that her sample proportion will be at or below? Round your answer to the nearest hundredth. Use the z-table given below: Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -1.2 0.115 0.113 0.111 0.109 0.107 0.106 0. 104 0.102 0. 100 0.099 7 125 123 0. 121 0. 119 0.117