Find p when z = 1.78. Use 4 digits after the decimal point, e.g., 0.0003 Find p when = 0.97. Use 4 digits after the decimal point, e.g., 0.0003. Find z when p = 0.1. Use 2 digits after the decimal point, e.g., 0.06. Find z when p = 015. Use 2 digits after the decimal point, e.g., 0.06. According to a US Gallup poll, the average expected retirement age for non-retirees is 66 with a standard deviation of 5. What is the probability to find individuals who retire at the age of 70 or higher? Use 4 digits after the decimal point, e.g., 0.0003