1. The mean systolic blood pressure in a certain population equals 140 mmHg, The standard deviation has a known value of 20 and a data set of 55 patients is available below: suppose the sample standard deviation is 36.

120,115,94,118,111,102,102,131,104,107,115,139,115,113,114,105, 115,134,109,109,93,118,109,106,125,150,142,119,127,141,149,144, 142,149,161,143,140,148,149,141,146,159,152,135,134,161,130,125, 141,148,153,145,137,147,169