[ベスト] Z¯ ¨µáê Vå 40 ã 151535
0 z ztablexls Title ztablePDF Author Bud Created Date 7//04 AMThe zscore allows you to compare data from different samples because zscores are in terms of standard deviations A positive zscore means the data value is higher than average A negative zscore means it's lower than average You can also determine the percentage of the population that lies above or below any zscore using a zscore tableReturn to Statistics Topics Z Alpha Over Two (Z α/2) There are four ways to obtain the values needed for Z α/2 1) Use the normal distribution table (Table pp) Example Find Z α/2 for 90% confidence 90% written as a decimal is 090 1 – 090 = 010 = α and α/2 = 010/2 = 005 Look for 005 = or two numbers surrounding it in the body of Table Alt Codes List Alt Key Codes Symbols Sheet Unicode Character Table 'Z"¯ ¨µáê Vå 40 'ã
